I don't like 10-round cause you can't reload until totally out of paint, but i think 15-round sticks out just a tad much. i'm thinking of cutting down my 15-round feed once i get it to make it a 12-round. the cap would still fit on it and all right? and whatw ould i need to cut it, i have one of those big circle razor things but i'd rather not use that. but i can if i need to. has anyone else done this?