So what did you end up doing, Campag4life? I'm in the same boat. Doing a lot of TT's on a road bike with clip-on aerobars. It helps but not the same as a dedicated TT bike. Also requires too many changes in setting up bike for road to TT to road. IMO, aerobars do not belong on road bikes. They're unwieldy and the pads get in the way. No top of bar position for your hands. I am looking for the exact same thing as you described in your original post and follow-up replies. I don't want to bastardize my road bike or suffer on a standard TT bike. Did you find a solution?