I use the Rocket Strictnines, mechanicals with a 2" cutting diameter. I've been happy with them, but I admit they don't blast through bone well on a missplaced shot. When I put the arrow where I want it, it leaves a devastating hole. I really want to try the Slick Tricks, but I can't find them anywhere around here. I've heard good things about the Sonic heads. What do you guys think? The cutting diameter is rather small only 7/8" on the 100 grain. Isn't this cutting diameter a little small. Any suggestions?