Thanks for the great explanation Paul. I get it now. The better picture gave the detail of the pitch and gear setup. Didn't realize the .700 was the length of thread and obviously added the "0" before the 7...my bad. That's some tedious stop action on multiple passes...Hats off to you!! Luck or not a Great Build!

I also get the beauty of the Unimat adjustable head stock but can see the pain of getting it back to close tolerance angle on the run. Wonder if it would be possible to use a fine thread push-pull screw system with a DI or 2 and some trig to dial it in, then just use the nut to tighten it when getting there? Final clamping can also pull it a bit but could snug it then a final tightening. Could use a ground rod to length/known diameter to get it right over the run? I picked up a few pieces from McMaster that were dead on over the run of 8", 12", & 16" (as best I could measure in tenths) for pretty inexpensive a while back.

Thanks Again. ~PJ