Left the apartment at 9:45am. temp: 39 degrees.
Arrived home: 3:55pm. temp: 59 degrees(ish)
Between those two times: 63mi @ 16.4mph. (plus two rest stops, a stop for lunch after the origanized ride, etc.
It was the first ride on my Serotta since putting the new wheels on it that bikeforums member urbanknight built for me. Ambrosio Excellight SSC rims laced to Camapgnolo Daytona hubs with DTSwiss Revolution spokes (Competition for rear drive side). 12-25 10sp Centaur cassette and Conti GP4000s tires made up the rest of the wheelset.
I give the new wheels high marks all around. I didn't feel all that well during much of the ride, but I stayed with (if not at the front of) the pack most of the ride. Braking surface is as good if not better than my mavic open pros, and much better than the non-machined rims such as my Campagnolo Omega 19 set.
Lots more photos of the wheels here:
http://www.bikeforums.net/showthread.php?p=7981425