I was thinking 5 slaps should do, but I won't know till I'm elbows deep. I only really want to crack the kernel open. I've tried several different methods before; Rolling pin, Blender, pillow case with rocks smashing on concrete repeatedly, backing over the grain in a bag with my truck, etc... I've pretty much done all the prove homebrew ways found on this forum. I just think the Slap Shot will be easier and give me a nice workout.