To all the people who have completed their buildups - what did you do as far as frame prep. (if anything)? Just wondering if it is actually worth it/necessary to have a shop face/bore the head tube and face/chase the BB shell.

There is definitely a good amount of paint in my BB shell, but I will be using a cartridge BB so I am thinking of just using some paint thinner to clean the threads out, grease up the shell, torque the BB down, and be done with it.