I like them alot....but I may be kind of partial, dunno
For sharpening see the thread Mr. Osminski brought ttt. (He's MR Osminski now, since he's gonna take me huntin'!, even tho he got outsmarted by a sheep.
Here's a couple Snuffer pics:
Shot through this guy-low chest passthrough- in BC a couple years ago (65@29 inch AS thunderhawk, 680 gr carbons:
Killed this fella last August with the same setup:
Got penetration to the offside ribs, twice. Muskox was the hardest to penetrate animal I've shot in North America.