I have tried "timing" the blades to match the fletching with no visible difference in group size. If you decide to do this you will have to keep each arrow and broadhead together as each broadhead will not time alike. I currently install the insert, and what ever way the blades end up they shoot fine. Depending on your sight set up (Long range with stuff below your sight like a Trophy Ridge) you may want to time your blades. This will allow more sight movement without your blades hitting the fiber optic or sight housing. As far as heads I have tried Muzzy, Interloc, Crimson Talon, and Montec G5 with no noticeable difference in group size. I think the Crimson Talon is a POS gimmic, but the others are all good quality. I chose the Muzzy because of the price and practice blades. I have shot two animals with complete pass throughs, but I re-sharpened the tips and blades over stock.