Absolutely-- that's why I tossed the stock ones. I really like tha MAHs I just put on-- I get about three minutes more flight time than the stockers, though that may be just because the stock ones had approx 2.7 kg of tape on them. [sm=devious.gif]
Re: the HeliMax carbons, are you talking about the ones with the diagonal transparent stripe near the root? I got a pair of those, too, since I was looking around, and they came with 2mm bushings in the root hinges-- not a chance of fitting on the 450. Did I get a bad pair or are they meant for the 400?
(btw, hope you don't mind me joking about the crash pic

).