I don't know if I'm posting in the right place. I am soon to join a gun club and they have some silouette competitions there. I am looking closely at either the Glock 35 (5.3" bbl) or the Glock 24 (6" bbl) barrel in .40 cal. to use for such competitions. Might anyone know about which of these might be the best for such use -- such as whether the longer barrel would exceed limits in certain kinds of competitions? Thanks. Joe