I have exactly the same gear and buffs.
Exception: PTR I lose socket stamina bonuses of 15 stam in total (due no prismatic effect), which I didn't factor into my maths because that is a real loss for me (I can't make it up by regemming).
PTR Blood HP: 32136, Armour: 25855 (2.2% more than PTR frost, and 5.8% less than Live blood)
PTR Frost HP: 31436, Armour 25855
Live Blood HP: 34118, Armour 26944 (6.1% more than PTR frost)
For some reason I can't work out there is a 0.12% avoidance loss on PTR too.
That's 1982 less HP on PTR blood than Live blood, which is a lot.
If I'm going to lose that much, why not reconsider whether I want blood anymore?
VB, Death Strike and WotN are the reasons to keep it, since Vot3W is meh now; Frost and Unholy have nice options too, so hmm do I stay blood?
Do I maybe try Frett's trick of blood and frost tank specs, and dps in frost-tank spec. Tempting.
PTR Blood: Live blood: PTR Frost:
