Alright! You really had nothing to say to make such a thread in here. "Hessian Peel, better as an instrumental?", another way of saying "Does Mike's vocals sucks on Watershed?". That's just about tastes and I'm so damn sure that everyone (most) thinks it's great as it is right now. If you have read some thread when Watershed was released you'd know that this song is one of the most appreciated from the public.
Anyways, my clear answer : No. Great instrumental, but Mike's voice doesn't bother me at all. +1 to the guy before me.