Quote from evblazer on Nov 6^th, 2008, 9:13am:

 
There was very little difference in speed. If I had realized I was going to race, I would have tried to get in a lot more miles on the Roadster beforehand. I can tell it's the slightly faster bike, but I don't have enough hours on it to be as dialed in as I am with the Corsa.
 
After four laps, with my legs pretty much fried, I switched back to the Corsa just because of the instant adjust seat recline. That seems to help recruit different muscles when I'm really tired.