Shot my first match at rockcastle team match a couple weeks ago. I waited until I started shooting before I looked into support bags and position building, mainly because I was unsure what to expect. During the match my teammate had a Armageddon game changer and a fat he lent me to use. I undoubtedly want a game changer but the fat bag I'm unsure about. I originally was going to purchase a medium. After some thought how often do you all actually use them and would you suggest medium or large? At the match I seen no one using a sling. I seem to be able to get a daily solid position using a sling from barricade shooting.