After my last disappointing debacle using old numbers and thinking I was block capped, I've upgraded some gear (go-go 2pc T7 XD) and am fairly certain that I'm now block capped while unbuffed.
According to my paper doll, I'm at 24.53% dodge, 18.55% parry, and 18.55% block. 6.16% chance to be missed from a defense rating of 554 + 5% base chance to be missed = total tooltip avoidance of 72.79. Throw on Holy Shield and I'm at 102.79% combined avoidance. Wee!
So now it seems like the joy of comparing upgrades relative to effective health has begun. I just picked up the Bracers of Dalaran Parapets tonight, but I'm holding off on enchanting them until I see whether or not the patch comes out this upcoming week. If it does, whatever enchant I put on them now will be wasted when I upgrade to the new stamina enchant :P If not, I'll work out what to add later.
Is that the right approach? Using effective health as my guide or just maintaining 102.4% and ramming whatever I have left over for gems/enchants/etc. into stamina?