
Originally Posted by coldbear
If you have 5 cp on a boss, 15sec left on SR and just got called to go deal with adds, you can reasonable expect to get away with one shot at a 5-cp Rip. If it misses and you spend another GCD or two trying to get it to land - people will be screaming for your head over vent at best, and at worst you just ate a lava wave and made yourself look like an ass in front of 24 other people that you've been working with for years. With the recent extensive nerf to miss rates there's just not much reason not to get hit-capped, it's just too easy and the opportunity cost too low. The expertise cap is another issue entirely, and expertise rating is so plentiful on most dps leather it's simply a non-issue for most of us.
Civilian, if you want to min/max your gear for static fights like Patchwerk, that's your prerogative. Personally I'd rather prepare for a broader spectrum of bossfights with a focus on events that are a challenge for reasons beyond just got-gear-got-rotation-checks. I'm sure the vast majority of theoreticians here are in very skilled company, but my last 25-man Thaddius was a mess with people not making the jump and dying for various reasons. I was not hit-capped at the time, got 5 cp and got called to battlerez our top dps machine with boss at 5%, enrage imminent and 1/4 raid dead. Rip missed. I opted to go do what I was told, got caught out in a polarity shift and didn't get back in to use the 5 cp til too late. We would've wiped anyway, but at that moment I would've LOVED to have been hitcapped.
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First, a remark. I do not optimize gear for static fights, nor can I see how that claim could possibly have followed from my previous posts. In fact, I do not believe I have even once mentioned static or non-static fights in this thread.
Now let us attempt to estimate numerically how the value of hit changes for a non-static fight. In a static fight, damage is proportional to
(1-miss chance)(white damage fraction) + (1-miss chance/5)(fraction of damage from energy) + (1-miss chance)^2 (fraction of damage from omen of clarity).
(Explanation: a missed attack using energy only costs 1/5 the energy, and omen of clarity is affected twice by miss chance: first in the proc rate, and second in the clearcasted attack itself.) The white damage fraction is about .3, and the yellow damage fraction overall is about .7. Energy regenerates at 720/minute (10*60 passive + 120 from tiger's fury), and omen of clarity procs about 3.5 times per minute, thus being worth about 140 energy. Thus, the energy fraction is about .7*720/(720+140) = .59 and the omen fraction is about .7*140/(720+140) = .11. Damage is then proportional to
(1-miss) .3 + (1-miss/5) .59 + (1-miss)^2 .11
If miss chance is small, then we can approximate (1-miss)^2 as (1-2*miss), so the expression simplifies to
1-.64*miss
or
0.95+.64*hit,
since miss = .08-hit.
Now let us model our non-static fight by making the player lose contact with the target every, say, minute of dps time. For the last attack before each such event, we say that a miss costs the full energy cost of the attack, since the player will not get a second chance, and we suppose that contact is lost long enough for the energy to regenerate to full. These attacks represent 40 energy/minute, and thus .59*40/720 = .03 of the damage. Damage is now proportional to
(1-miss) .3 + (1-miss) .03 + (1-miss/5) .56 + (1-miss)^2 .11,
which simplifies to
1-.66*miss
or
.95+.66*hit.
The mechanics of this non-static fight therefore increased the value of hit rating by a factor of 66/64 = 1.03 relative to a static fight. This is a very marginal increase: if hit rating were worth 1.3 strength in a static fight, it would be worth 1.34 strength in this non-static fight.