Does anyone have experience with the C5 Aero? I couldn't really find any reviews online. I'm helping a friend build a new bike and we're trying to decide between the C5 and C5 Aero. They will be upgrading from a 2014 CAAD10 and are looking for a good bike that will last a long time. They love racing but in reality, the vast majority of the bike's miles will be done on outdoor training rides and joy rides. We live in an area that is pretty hilly, but there's some decent flat riding options too. Winspace says the aero version is actually lighter than the regular version because they used higher end carbon. Personally I don't have experience riding purely aero bikes... but I bet riding the aero version would be really fun. I'm just not sure if it's the bike for a go-to joy ride by a smaller, 58-60kg rider.