I always shot straight fletched for about 3 decades. When it came time to tune broadheads it was always a tedious job. When I got done I'd number and mark arrows and all that. Of course some were better than others. Lens guy talked me into trying a little helical a couple years ago. Where I used to buy a dozen and end up with 7 or 8 hunters at best from a dozen I now can just about grab any of them and I know they'll shoot. I use a Muzzy Zero and it works just fine. I haven't really lost any speed to speak of. In my opinion... if you're shooting fixed a little offset or helical is really good.