Yesterday I had decided to cap my Shield skill solo. I headed out to Quicksand Caves (East Altepa entrance) to let Helm Beetles (DC to T, most are T at 52) beat me up at the zone line. Then I realized, if I'm going to waste a couple of hours in this, I may as well take the opportunity to take note of my shielding rate and by how much damage is reduced. At first I only compared Master Shield (Size 2, Shield Skill +10) to Royal Knight Army Shield (Size 3), but later on I tested Mahogany Shield (Size 2) a bit as well to see how it compared to Master Shield. To my surprise, my R.K. Army Shield shielded slightly more often than Master Shield on average, and of course, reduced damage by more. By taking note of the minimum and maximum damage I took on normal hits and shielded hits, I was able to conclude that Size 2 shields reduce damage by ~45%, while Size 3 shields reduce damage by ~60%. Below I'll include my tests, in order (all were performed as PLD52/WHM26.)
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Shield Skill: 155 + 23
Master Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 32/77 = 41.56%
Average reduction: 18.70%
---
Shield Skill: 155 + 23
Master Shield (Size 2)
Helm Beetle (forgot to /check)
Shield rate: 25/63 = 39.68%
Average reduction: 17.86%
---
Shield Skill: 155 + 23
Master Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 24/80 = 30%
Average reduction: 13.5%
---
Shield Skill: 155-156 + 23
Master Shield (Size 2)
Helm Beetle (T_+)
Shield rate: 29/58 = 50%
Average reduction: 22.5%
---
Shield Skill: 156 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (EM_+)
Shield rate: 44/91 = 48.35%
Average reduction: 29.01%
---
Shield Skill: 156 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (EM_+)
Shield rate: 28/85 = 32.94%
Average reduction: 19.76%
---
Shield Skill: 156 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (EM_+)
Shield rate: 39/95 = 41.05%
Average reduction: 24.63%
---
Shield Skill: 156-157 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (T-+)
Shield rate: 37/88 = 42.05%
Average reduction: 25.23%
---
Shield Skill: 157-158 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (T-+)
Shield rate: 28/62 = 45.16%
Average reduction: 27.10%
---
Shield Skill: 158 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (T-+)
Shield rate: 49/103 = 47.57%
Average reduction: 28.54%
---
Shield Skill: 158-160 + 23
Master Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 33/84 = 39.29%
Average reduction: 17.68%
---
Shield Skill: 160 + 23
Master Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 25/74 = 33.78%
Average reduction: 15.20%
---
Shield Skill: 160-161 + 13
Mahogany Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 25/76 = 32.89%
Average reduction: 14.80%
---
Shield Skill: 161 + 13
Mahogany Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 30/67 = 44.78%
Average reduction: 20.15%
---
Shield Skill: 161 + 13
Mahogany Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 25/75 = 33.33%
Average reduction: 15.00%
---
As you can see, luck plays a fair role in shielding rates. I still need to do a few more tests with the Mahogany Shield to get a better idea of its proc rate, but on average, my R.K. Army Shield was shielding a bit more than Master Shield/Mahogany Shield. I'm assuming S-E did this deliberately to help PLD perform better, since Size 3 shields are practically our trademark (DRK gets them too but has no shield skill.) My R.K. Army Shield also was reducing damage a bit better than an Earth Staff would've. Of course, I expect proc rates to be lower against IT mobs, but I doubt Size 3 shields would fall behind by much if at all.
Unfortunately, I didn't figure I'd be doing testing when I first set out, so I didn't have any Size 1 shields on me, and I'm not high enough to use any Size 4 shields yet. However, I did find a thread in KI in which a 75 PLD (302 shield skill) did some testing of his own on EP mobs. His testing suggested that Size 4 shield rate is fairly low compared to Size 3, and Size 3 reduced damage better on average. It also suggests that shield rate is capped at 65%. http://ffxi.killvoid.com/forums.php?m=posts&q=116124
Any thoughts?
EDIT: Did two more tests with Mahogany shield, and three with Aspis (Size 1). Size 1 shields have a 25% reduction. However, even with the highest shield rate I recorded (which was almost at the supposed cap,) it can hardly make up for its low damage reduction. Size 4 may be an exception, but it looks like the bigger the shield, the better.
---
Shield Skill: 161 + 13
Mahogany Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 31/82 = 37.80%
Average reduction: 17.01%
---
Shield Skill: 161-162 + 13
Mahogany Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 35/80 = 43.75%
Average reduction: 19.69%
---
Shield Skill: 162 + 13
Aspis (Size 1)
Helm Beetle (T++)
Shield rate: 29/58 = 50%
Average reduction: 12.5%
---
Shield Skill: 162-163 + 13
Aspis (Size 1)
Helm Beetle (T-+)
Shield rate: 37/64 = 57.81%
Average reduction: 14.45%
---
Shield Skill: 163 + 13
Aspis (Size 1)
Helm Beetle (T_+)
Shield rate: 38/60 = 63.33%
Average reduction: 15.83%
---
So yeah, Size 1 performance was fairly disappointing. On the bright side, in that last fight with the 63% proc rate I did shield block x3 -> normal hit -> shield block x11. It was one of those "omgwtfbbq" moments. It's also better TP gain, although I don't think it warrants the loss of damage reduction.
---
Shield Skill: 155 + 23
Master Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 32/77 = 41.56%
Average reduction: 18.70%
---
Shield Skill: 155 + 23
Master Shield (Size 2)
Helm Beetle (forgot to /check)
Shield rate: 25/63 = 39.68%
Average reduction: 17.86%
---
Shield Skill: 155 + 23
Master Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 24/80 = 30%
Average reduction: 13.5%
---
Shield Skill: 155-156 + 23
Master Shield (Size 2)
Helm Beetle (T_+)
Shield rate: 29/58 = 50%
Average reduction: 22.5%
---
Shield Skill: 156 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (EM_+)
Shield rate: 44/91 = 48.35%
Average reduction: 29.01%
---
Shield Skill: 156 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (EM_+)
Shield rate: 28/85 = 32.94%
Average reduction: 19.76%
---
Shield Skill: 156 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (EM_+)
Shield rate: 39/95 = 41.05%
Average reduction: 24.63%
---
Shield Skill: 156-157 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (T-+)
Shield rate: 37/88 = 42.05%
Average reduction: 25.23%
---
Shield Skill: 157-158 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (T-+)
Shield rate: 28/62 = 45.16%
Average reduction: 27.10%
---
Shield Skill: 158 + 13
Royal Knight Army Shield (Size 3)
Helm Beetle (T-+)
Shield rate: 49/103 = 47.57%
Average reduction: 28.54%
---
Shield Skill: 158-160 + 23
Master Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 33/84 = 39.29%
Average reduction: 17.68%
---
Shield Skill: 160 + 23
Master Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 25/74 = 33.78%
Average reduction: 15.20%
---
Shield Skill: 160-161 + 13
Mahogany Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 25/76 = 32.89%
Average reduction: 14.80%
---
Shield Skill: 161 + 13
Mahogany Shield (Size 2)
Helm Beetle (T-+)
Shield rate: 30/67 = 44.78%
Average reduction: 20.15%
---
Shield Skill: 161 + 13
Mahogany Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 25/75 = 33.33%
Average reduction: 15.00%
---
As you can see, luck plays a fair role in shielding rates. I still need to do a few more tests with the Mahogany Shield to get a better idea of its proc rate, but on average, my R.K. Army Shield was shielding a bit more than Master Shield/Mahogany Shield. I'm assuming S-E did this deliberately to help PLD perform better, since Size 3 shields are practically our trademark (DRK gets them too but has no shield skill.) My R.K. Army Shield also was reducing damage a bit better than an Earth Staff would've. Of course, I expect proc rates to be lower against IT mobs, but I doubt Size 3 shields would fall behind by much if at all.
Unfortunately, I didn't figure I'd be doing testing when I first set out, so I didn't have any Size 1 shields on me, and I'm not high enough to use any Size 4 shields yet. However, I did find a thread in KI in which a 75 PLD (302 shield skill) did some testing of his own on EP mobs. His testing suggested that Size 4 shield rate is fairly low compared to Size 3, and Size 3 reduced damage better on average. It also suggests that shield rate is capped at 65%. http://ffxi.killvoid.com/forums.php?m=posts&q=116124
Any thoughts?
EDIT: Did two more tests with Mahogany shield, and three with Aspis (Size 1). Size 1 shields have a 25% reduction. However, even with the highest shield rate I recorded (which was almost at the supposed cap,) it can hardly make up for its low damage reduction. Size 4 may be an exception, but it looks like the bigger the shield, the better.
---
Shield Skill: 161 + 13
Mahogany Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 31/82 = 37.80%
Average reduction: 17.01%
---
Shield Skill: 161-162 + 13
Mahogany Shield (Size 2)
Helm Beetle (EM-+)
Shield rate: 35/80 = 43.75%
Average reduction: 19.69%
---
Shield Skill: 162 + 13
Aspis (Size 1)
Helm Beetle (T++)
Shield rate: 29/58 = 50%
Average reduction: 12.5%
---
Shield Skill: 162-163 + 13
Aspis (Size 1)
Helm Beetle (T-+)
Shield rate: 37/64 = 57.81%
Average reduction: 14.45%
---
Shield Skill: 163 + 13
Aspis (Size 1)
Helm Beetle (T_+)
Shield rate: 38/60 = 63.33%
Average reduction: 15.83%
---
So yeah, Size 1 performance was fairly disappointing. On the bright side, in that last fight with the 63% proc rate I did shield block x3 -> normal hit -> shield block x11. It was one of those "omgwtfbbq" moments. It's also better TP gain, although I don't think it warrants the loss of damage reduction.
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