For hunting purposes (close range = 0 to 50 yards), learn to shoot without a peep. Using just a kisser or an anchor-knot to establish a consistent anchor, you can shoot tight groups and be just as accurate, regardless what anyone tells you.
Once you learn to shoot without a peep -and you can, you will never go back to a peep or use any other device between your aiming eye and your pin.
" Free at last, free at last, thank God Almighty, you will be free at last!"