Thanks for the tip.Very nice work Mike. I appreciate the journey you are on.
Just a random comment/suggestion/thought. Do you have calipers? Turning to bushing size is a hit/miss experience to get the transitions close. I have found it helpful to use calipers for the final OD (outer dimension) for my final tool passes. Measure the components, then use the calipers with bushings for refinement.
If you know all this - just ignore !