Here’s my thinking.. (warning – light theorycrafting to follow)
The Pendant gives me a total Attack Power that is 18 more than the total Attack Power I get from the Choker. How much difference does 18 AP make? Since every 14 AP = 1 DPS, that is 1.3 DPS. With a weapon of speed 1.8, like my Emerald Ripper, that is an average of 2.3 additional damage per swing. In addition, as a Scryer my pendant procs about every 50 seconds with an Arcane Strike for about 350 arcane damage.
But wearing the Pendant I lose 18 Hit Rating, so I am missing more often (1.14% more often, to be exact). Will the damage lost by misses outweigh the gains from additional DPS plus the Arcane Strike proc?
I wore the Pendant into our partial Karazhan run last night. Afterward, I looked at the WWS report. I only looked at normal damage. The difference of 2 agility between the items has such a small effect on my crit rating that I didn’t bother.
In the run I took 3555 regular swings, with 1747 hits, 540 glances, and 951 crits. I missed or was dodged or parried 317 times (8.9%).
Well, moving forward with the math… If I had equipped my Choker, I would have hit 1.14% more often. With 3555 swings that becomes 40.5 more hits, which I will round to 41. So 1788 hits instead of 1747. (I’m ignoring glancing blows for the purposes of this calculation… won’t make a significant difference)
But with the Choker each swing would have hit for slightly less damage (average of 2.3 per swing). With the Pendant on, I hit for an average of 226 per normal hit. 1747 hits x 228 per hit is 398,316 white damage from normal hits. If I had equipped the Choker I would have hit 1788 times, but at about 225.7 per hit. 1788 x 225.7 is 403,552 white damage. Subtracting them I find that wearing the Pendant last night cost me 5,236 white damage over the course of the raid.
But then there is the Pendant’s Arcane Strike. In the run it proc’ed 58 times – 42 normal and 16 crit. It did a total of 25,378 damage. That outweighs the damage lost due to hit rating by a significant mount (about 20,000) over the course of the run.
This doesn’t include the effect of hit rating on my special attacks. Without rewriting all of those steps, the lower hit rating on the Pendant cost me an additional 2037 damage from Backstabs, 1494 from Sinister Strikes, and 483 from Ambushes. That is another 4,014 damage. Even with my normal and special attack misses combined, they still don’t add up to the damage I gained from the proc on the Pendant. Even if I go number crazy and try and add in the effect of additional poison procs it won’t add up.
Up until now I have been all about hit rating. I hate missing. But its pretty clear here that sacrificing a little hit rating results in more damage overall from the proc on the Pendant. Its not a huge difference, but every little bit counts. I guess I’ll keep it. I may re-equip the Choker for boss fights since its more important to hit in that situation. More math needed…