I recently flecthed 3 arrows with blazers, and arrow wraps, and I shoot with the TR drop away. I quickly noticed that if I had a vane straight down, I had contact at the riser/rest. SO, looks like I will need to fletch with a cock vane and have it straight up to prevent any contact. Other than that, they seem to stabilize my arrows quite well with field points and also with the my 3 blade innerlocs!