If you are going to shoot off a "flipper" rest, you have to use feathers unless you relish frustration and headaches.
As long as the bow is tuned, and you're shooting properly spined arrows for your draw length and draw weight, you won't have any problems shooting arrows with vanes off flipper rests. A properly spined arrow jumps off to the left (right handed shooter) and the vanes never come close to a flipper style rest.
Maybe you were thinking of shooting a prong style rest with fingers. Major no-no.