Gloves will change your impact. The bow grip is not sitting in the "sweet spot" of your hand that you're use to. As for clothes, they can throw your shot off, but the way to get around it is to open your stance up a little more. If you shot the same round without gloves and just the clothes, and pulled yourleft foot back just a little bit(assuming you're right handed), you probably would see a few more points on the card.