I'm building up a new bike made of the highest end steel. I'm 57 y/0, 5'7", and bounce between 190 - 210 lbs. I enjoy aggressive club rides, usually 50 miles or so where the last 10 turn into a street race. I've raced once for real, 35 mile road race, and intend to do another one this year. At the height of my cycling fitness, last summer, I could ride 20 miles at 20 MPH (flat no wind) alone. Reality is that's probably about as good as it will ever get for me, I'm far from that currently as I'm recovering from a broken foot.
I'm not into fashion, trends*, or looking cool (impossible). My question is would I benefit from some shallowish carbon wheels? Would I actually feel the difference? Or should I just continue with the decent aluminum stuff I've been riding?
*I've got one goofy thing I really dig: Rear hubs that sound like a machine gun when you back off the pedals. I know, I swim in the shallow end of the pool.