3. ATTACK TABLE
One of the popular arguments for stacking hit is people tell you that the more you hit the more you crit. As much as that sounds like it makes sense it is not how the WoW combat system works. Wow uses an attack table.
http://www.wowwiki.com/Attack_table
This means is that there is a 100 sided die that blizzard rolls every time you attack. Say you have 0 hit and 41% crit and are attacking from behind.
Here are the sides of the die:
1-28: Miss
29-53: Glancing Blow
53-58: Dodge
59-100: Crit
In this circumstance every time you hit it will crit. Crit shares the hit table with non crits so as long as your crit is less than miss + glancing + dodge then adding hit will have no effect on your crit. Now if your crit was above 41% which is possible with raid buffs and mongoose procs then you would be losing crits in this situation. However one will never have 0 hit. Assuming then the minimum 9% hit for your yellows not to miss you can safely stack crit to 51% without losing any benefit. From here on every 1% hit increases your crit cap by 1%.
- Two-Roll System for Specials?
After poring over dozens of WWS reports and combatlogs, I have yet to see any evidence supporting a two-roll system for special attacks in PvE, apart from this thread:
http://elitistjerks.com/f33/t9104-backstab_two_rolls/
Bear in mind that this thread was created in November of 2006, and the testing methodology is not especially rigorous. I personally have not had the time nor opportunity to properly test this, as I would need to drop my hit rating and boost my crit rating to such a point that it would become unfeasible in a raid setting.
However, I do not discount the possibility of a two-roll system for specials out of hand, but would like to point out that from a programming standpoint, it is much more efficient to have one one-roll system than two different systems operating simultaneously. Therefore, it is unlikely that this is the case.
