Long time hunter and shooter of recurves and trads here... Whiskers are known for disrupting fletching and might even damage them too. Known a few times guys had to do minor repairs on their fletchings after shooting several times through whiskers. Honestly depends on the type of fletching you are using. Feathers, both natural and imitation plastic, have more nooks and crannies that can get caught on any type of rest when being shot. The smooth, single piece "batwing" types tend to hold up to heavy use and battering more, as long as nothing sharp cuts them...