IMO, it depends on what your shooting style is, example: I shoot a straight feather and have since I started bowhunting but my set up is a mech bh and they fly well with the straight feather. I tried to use some fixed bh's and I couldn't get them to fly with that fletch, so I fletched a few arrows helical and they flew better with the fixed b/h. This has been my experience with them....Good Luck