Hi guys. My friend just brought me his racket to string. It's the Prince Force 3 ice OS. It has double grommets at 7H and 8H. I don't exactly understand what I am supposed to do with it (string differently), or what it means. Could someone please explain it to me what I am supposed to do differently? I am thinking that they act like main skips but don't really count as them. I am just confused about which hole of the 2 the main goes in, is it the bottom or the top hole of the hole?