I used to, but now I like dubs better than singles. Singles sucks as a USTA league because we get 1 hour to play while the dubs gets 2 hours. Plus once you get out of college 85% of the people at the clubs play doubles. Sucked at first, but now that I am onyl half way bad at doubles and not a complete failure it is becoming fun.
In the end, too much serving hurts my shoulder and singles seems to be too much if I play as much as I play dubs. Dubs seems to be just enough serving that is really doesn't bother my shoulder.
I am getting used to playing with a partner too, seems more relaxing. But I notice myself a lot more focused and pumped on a singles court. Hmmm, that might be a problem...