So I've accepted I'm in an abusive relationship with tanking...
Where I hate it but I'm drawn to it like a moth to the flame that will fry it. So I've accepted this and am now trying to catch up after spending nearly all of MoP on the sidelines.
What I think I understand in a nutshell is this:
There are 2 basic gearing philsophies (ignoring crit-centric) - Mastery/Stam and Dodge/Parry.
It seems like both gearing philosophies have the same goal - in most cases maximize rage gain to maximize sBlock uptime.
Mastery/Stam builds focus on maximizing crit-block to gain rage.
Avoidance builds focus on maximizing the value of riposte by increasing % of occuring and maximizing the crit rating gain (by having more rating to covert to crit) for crit SS and Rev for rage gains.
So question #1 - Is this basically the idea behind each gearing philosophy?
Next, Avoidance Balancing - for warriors you get strength converted to parry. So Parry DR are less than dodge DR because you're designed to have more of it, but at the same time that means you can't simply balance Dodge and Parry rating.
So question #2 - Is there a way to easily calculate the real value of each additional point of rating? I'm assuming the math is something like:
Diminishing return of Dodge at rating N = Diminishing return of Parry rating at N where N = Parry Rating + Parry Rating + Strength. Essentially you're trying to balance DR for Dodge Rating = Parry Rating + Parry from Strength Rating?
Even in a mastery/stam build you'd still want to balance your DR for Dodge compared to Parry + Strength Parry.
And finally - question #3 - with 2 charges and a 9 second CD with 6 second uptime, sBlock appears to have a possible 100% uptime for the first 18 seconds, then a 66% maximum uptime until both charges are restored. So you can't maintain 100% block uptime, what is the value of rating per % of block?
The reason I'm asking is if both builds generate roughly the same amount of rage (Teng's guide suggests you may not even need all SS/Rev CDs to max rage gain with enough mastery as you may not need 7.5% hit/15% exp to max rage gains) and icy-veins strongly recommends avoidance builds to maximize rage gain through riposte, then I'm going to make the dangerous assumption that if you play well, rage generation (and thus sBlock uptime) will be similar for both builds making the overriding concern what to do for the 3 seconds every 9 you don't have 100% sBlock up.
Philsophically, I'm inclined to go the stam/mastery route as traditionally that's been the best option for incoming damage smoothing, but if I get more dodge/parry% after DR than regular block% after DR then an avoidance build would seem to be preferable as it increase dodge/parry/block % by more than a stam/mastery build. But I can't find the numbers here and reforging testing appears to show me that the gains to regular block % are completely underwhelming.
From my reforging it seemed like I was looking at giving up ~6% dodge/parry (pre-DR) for 4% block (pre-DR). Did I just completely mis-read the results of my reforging test?