I just started using Blazers. I put them on a few arrows and shot them versus my regular plastic vanes. The trajectory was the same out to 45 yards (so the Blazers did not reduce the drop my arrow experienced) but the groups were tighter. The only reason I could figure for this was that the Blazers made the arrows more stabil. You could try them on a few arrows for free before deciding for yourself. Just call Bohning and ask for a sample.