What do I think??
Well, at the risk of being deemed sarcastic, unkarmic, unfair to fish and competitive diver alike, and the last word on Riffe's here, though Anderson and Aquiles hold that title as well... Give the thing a try w/o the wings and see what happens. If the thing wants to say howdy with your mask, add the wings. Simple no?
The thing is that to save the warranty on the MT's, you need to send it back to Jay and have them drill and seal the inserts for the wing's screws. Other than that, like I mentioned earlier, if you get in a situation where you are finding that the wings are an issuen in tracking, turn your wrist 90 degrees . It's what the Big Guy gave you wrists for. If anything, I think the added oomph the 4th band gives will offset any negatives from the added 4 ozs. of the new muzzle.
Re; the shaft size thing, (uh oh), I routinely use the next length shaft without too many problems. Indeed some here, Jay I think do that as a matter of course, and the Stylin' Styrone knows fish.
sven