HOWEVER, I did find out that there was an exploit to get around it (one of those rare exploits where you would WANT a bit of lag). Basically if you spammed “X” to sit/stand/sit/stand, then if a mob hit you while you were sitting and right as you were standing up, then it would register as a crit, but on the server side you would be standing, thus allowing the ability to proc.
CLOSED BETA TEST & STRESS TESTS – Starting May 15, select WoW players will be invited to participate in a small-scale, focused closed beta test, helping ensure WoW Classic nails its goal of authenticity. Players will also get a chance to help put our servers and technology through the paces in a series of stress tests from May through July—opt in now at!