the vert feed on the xtra is especially attractive. if you lean more towards the shutter i'd recomend seriously thinking about the tl plus. it hink the tl + is cheaper. the shutter's got a reg (but i've heard it sucks) and a really tiny bottom line. the tl's basically the same gun sans drop forward and reg. i don't think the extra money for the shutter is worth it. unless you really need the colorful ano.