When I slide, I usually use my side, always carrying the gun on the opposite side. If you want to do a Superman slide, make sure when you slide to keep your gun on the upside of your hands, keeping it from the ground and using your forearms to slide.
This video is pretty informative: http://www.youtube.c...h?v=EE0J9yj1Sec
Thanks very much, that video did help. Thanks !