I don't race, but I ride with some racers and tri-people, and I know they would not want to give up speed when coming off the line. Two sets of wheels might be the answer. I wouldn't want to change tires for different events, although I guess you would get really good at it!
And +1 for Indysteels advice on PSI. At your weight, you probably don't need 110 PSI. In fact, riding a lower PSI would make your ride more comfortable.
Grits
2010 Trek 5.2 Madone WSD, SI Diva Gel Flow
2002 Terry Classic, Terry Liberator