1) Snake requires two stances to be maxed, I simply do not have points for that. Also it deals zero damage without decent amount of poison pierce.
2) Stampede stuns, it actually deals damage to enemys in melee range (overkill does not), it is more comfortable to use and I'm sick of playing same builds over and over again. Wolf stance, besides giving CB, also adds alot of mobility (ias/fhr/fbr) and damage.
3) Before asking such questions, please watch the video to the end