Thanks for the suggestions. I've ridden on aero bars in the past, and it should come back to me pretty quickly. The stem I had on the bike was pretty long to begin with, so going to a shorter one is going to be easy. The wheelset that's on the bike now is DA/CXP-33, so I think I have as much aero as I deserve at this point. I'm not totally comitting to this just yet, but it's a form of racing that I'm built for more than road racing.