I have a 04 scalpel 900 that i have upgraded to about 26lbs. I am committed at this point to do one more major upgrade with the hopes of not only making this 25, but making it "feel" like a 25. so my question is this: the stock wheels are mavic 117's. would i feel more a difference upgrading the wheels to some from oddsnendos at around 1650g, or by getting marta sl's, both of which cost about the same and will shave, by my estimates, almost a pound, with the martas saving a bit more than the wheels. I know the obvious answer is going to be the wheels because of rotational mass, but would more weight saving from other rparts of the bike make more of a diff than less weight saving from just wheels? Thanks!