I use a fletch cover only when conditions are wet, and I want to protect my fletching. Otherwise, I use white (prefered) or bright fletching all the time, no problems. White DOES help me see my arrows, even from my periperal...and it helps a lot to know where your arrow hits. Unless you are hunting during a gun season or for turkeys, and there is real concern about being shot accidentally, white won't be a problem if you know when and how to move or set up. White and light colors are very predominant in the west, anyway...and I would think in a tree (have you ever looked up from the ground into the treetops?) you can easily disappear with white. Predator fall grey, and even snow camo is an effective camo to hunt in trees.