I've shot clean through deer, hog, and javalina with the 160 grain Snuffer, with 60-65# @ 30" high performance bows. I've never shot them with lower poundage though, so I'm not sure how they would perform with lighter bows.
My BH and arrow setup is: 160 gr. Snuffer with steel 100 grain BH adapter on either a Carbon Express Heritage or Easton Epic carbon arrow. (High FOC)
I do know the WW blows through "faster" with less resistance, if you understand what I mean...so penetration advantage would go to WW, IMHO.
I've used the big Snuffers, WW, razor caps, Simmons Tiger Sharks,,, and nothing I've used caused more damage and more blood on the ground than the 160 grain Snuffers....you need to keep them very sharp. I love them!
Mike