I've tried adjustable barrels and personally don't like them. Go with the freak. Adjustable barrels were thought up of for one reason, to provide a barrel with different bores for lazy people who don't want to carry a kit. (apologies for anyone who uses one) There is no use for an adjustable bore barrel on the field. It isn't like the paint will change size in the 15 minutes of a game. Other kits to think about are the CP kit, and the JT kit. Rumors are floating about Dye making a boomy kit, but I have yet to see one. Hope this helps.