i think we all get bit by the advertising bug some...you see it on the hunting shows and in the magazines and you think "i got to try that!!!" I dont think there is a dimes worth of difference between most of your higher quality broadheads. If you can get them to fly where you want them and get them sharp youre good to do. I think i would lean towards the smaller 4 blade because you probably have a slightly better chance of a pass thru with the diameter.