I shot 125 grain Snuffers and Thunderheads for years,until I saw a video that showed how hard it was to push one through a piece of tanned leather by hand.The deer I killed with them should have watched that video,LOL!. I switched to 2 blade Grizzlys.They worked fine as well,but I like the snuffer bloodtrails better,so I'm back to them.125 for deer and 160 for turkeys. Shooting 66-78# American semi longbows with wood arrows.For deer and bears I think how sharp the blades are means more than how many.