I still vote for 4 blades.....if your bleeder blades are going to hit a twig.....then so are your fletching (unless you have poor arrow flight)....they don't stick out beyond my fletching anyhow? However, I do shoot a shield cut feather, which is a little taller than most. If for some reason the arrow doesn't penetrate, then thebleederbladescut backwards as well.....so when the deer reaches aroundto pull it out it's causing moredamage. An exit hole is nice,which I don't think you'llever have a problem getting with a 4-blade. But you can look at it this way if your arrow is delivering70 lbs of kinetic energy and it doesn't penetrate or stays in the deer, then the deerabsorbed all that energy, whereas acomplete passthrough allowsthegroundbehindthe deer to absorb all the energy.....seems like a waste of energy to me......mightas well be cutting something with that extra whap!Knock em' off their feet.....I still believe you'll get an exit hole with either one. I just moveddown tolowerAL a few years ago, andI still haven't shot one that I haven't completelytaken off it's feet, they get up....butdon't go far.Of course, theirthe sizeof a german sheparddown here. I'm delivering 76 lbs of KE....pass through everytime....no shoulder shots yet though. I'm goingon a Utah elkhunt in two weekswith 100% confidence inmy Stinger 4-blade.