I watched several hunt vids this afternoon (nothing else to do in this damn wheelchair) featuring the use of those "Toxic" heads. One thing I noticed was they have a HELL of a "whack" when they hit. Sounds like a 2x4 snapping. From what I've seen so far on them, they look interesting, but not interesting enough yet to switch up from my tried and true BH's. I dunno, may get a set or 2 and try them out on some hogs first next year before trying them on a Whitetail. If they get through the shield on a good sized hog then I'll be sufficiently impressed.