I have shot both with positive results. I'm favoring the vented at this time because they come in a larger cutting diameter . 1 & 1/4" I think. While I'm at it, the other thing I like about them is that they are cheaper to shoot in the long run IMO. With a mechanical or replacement blade type head I think guys end up having to buy replacement blades once they've been used on game. I can practice with the fixed blade I'm going to hunt with, touch it up with a file and ceramic stick and I'm good to go. Since they are carbon steel, I put a thin layer of vaseline on the blode.