Bobco, deer I have shot with both mechanicals (3 blade wasp jackhammer sst) and fixed heads (steelforce 4 blade) left a hole, definitely not just the three or four slits (depending on the number of blades). I don't know if this was due to tissue under tension retracting, spinning broadhead or what, but it is a definite hole, like they were shot with a slug or something.

I have never shot a two blade head at deer, so I have never experienced the slit closing up phenomena that I've heard and read alot about. I was just wondering if this phenomena is real, does 5 shot think this will be a problem with the nail driver.