Of course there is more drag,planing,friction and everything else associated with broadheads but out of normal compounds shooting at normal bowhunting distances(less than 40 yards)there shouldn't be a noticeable difference in impact when everything is perfect.Heck,my son's bow shoots 2 blade Magnus Stingers with fieldpoints out to 25 yards the same.Atleast in his groups.I screwed his magnus on mine a couple weeks ago and I couldn't tell a difference at 40.

I shot out to 40 today and didn't notice any difference at 40 in my up and down,with 3 blade wasp hammer sst's.However,I wasn't shooting my best today.