It is possible that a wad might help your accuracy, but since you are happy with what you now have, why bother? Wads protect the base of a bullet from the hot gasses of combustion, and flat based bullets might be distorted by that gas. Hollow based bullets are designed to expand in diameter when the gas gets into the base, so wads are not a good idea in those. Sabots perform the same function as wads. Wads are typically made from felt, card stock, and/or vegetable fiber. Hornets nest is an option, if you can avoid the hornets. Good Hunting.