Looking for a bit of group wisdom, looking at two sets of wheels at the moment:
My leaning is towards the 50s, simply to save a couple bucks, as they're on sale. The weight difference looks to be negligible. I'm currently using the factory Fulcrum Racing T (functionally equivalent to Fulcrum Racing 7), so almost anything is going to feel like a nice upgrade for me, as well as adding some bling. I'm a pretty new rider and the only competitive events I have any plans on entering on duathlons and triathlons for the forseeable future (blasphemy on the 41, I know).