I use the general rules for the seat height (so get a fitter to measure knee angles in the bottom stroke). After that its all trial and error for me. I find seat back position and bar height are a bit different from my road setup.
For my pursuit fit its mostly the same. Since the bike handles so different at the track in aero bars vs on the road, I don't think you can take the same fit and apply it necessarily. At the same time, comfort goes out the window more or less as long as I don't lose power, since at most I only have to spend a few minutes in the position.