First, let me ask, is 110 psig the recommended tyre pressure, or the maximum tyre pressure? If it is the latter, why do you keep it so high?
Alex - I keep my Specialized Armadillos 700x25's at 120 - 125. It seems they go quite a bit faster, as they seem to be a slow tire anyway. I kept my Conti's 2000 Ultras at 120, at the strong recommendation of my LBS guy. I weigh about 230 lbs.
In 12,000 miles of riding (6,500 on mtn bike and 5,500 on road) I have never had any problems from either wheels or tires, except for the perfunctory flat from thorns and glass.
So, why do you not seem to recommend 120+ psi pressures for the road bike??