Thanks to R.V.T.B who posted earlier he showed me several years ago how to get Snuffers real sharp.....im mean REAL sharp and since then I've killed a half a dozen deer with the 160 gr Snuffers.......all with bows right at 40-42 lbs! On broadside deer they've poked out the other side so there were two holes and lovely blood trails. Quartering away deer, no off side complete pentation but good blood and dead deer! If you can get em really sharp, get deer in stickbow range, I'm not the least bit worried about them doing the job Roger meant for them to do.
I will also echo Ryans thoughts on the too far back issue and a 160 Snuffers is great insurance!!!