RE: cut on contact / 4 blade fixed.
I'll bite....I like the slick tricks because they fly like field points, have a 1" or 1 1/8 inch cutting diameter which is a good size for penetration, and have 4 blades for that little bit of extra cutting. They also have some of the thickest, sturdiest blades of any broadhead. I don't know if I trust mechanicals on deer - too many horror stories. With all else equal, I'd rather have a 4 blade than a 3 or 2 blade.