proper use of arc protractor ?

Yes, Audioblazer. I think you observation is correct and I don't know how to get around this. My point was just that the VTA does change the overhang, so I set VTA roughly where it will end up (because I don't change VTA for each LP with my SME V arm) before I try to align the cartridge with the Mint.

I would think that Kip took this into account when he designed his glass protractor. I think it is close to the thickness of a 180g LP, but I haven't actually compared the protractor to various LP thicknesses.

"It is permissible to rotate the Tractor to accomplish such"
Not sure I understand this statement.
Once tip is on arc line of outer point, is it permissible to rotate the protractor (not the platter- if not why not?) and place tip on inner point?
Is this correct?
Thanks.

No, one should not then rotate-move the tractor when going in between inner, and outer points of the arc of protractor.

Only initially, if the protractor itself is grossly off the mark. If one cannot trace the Arc perfectly, one could possibly have the Protractor positioned slightly incorrectly.

One can then move the protractor, but then must start all over again with the overhang adjustment.

I think I have this right. Mark

If you could let us know where you live, perhaps a fellow Audiogoner would be willing to come over and help. Using the MintLP or any other arc protractor is not difficult, just time consuming. I have greatly benefitted from watching a couple experienced audiophiles walk me through the procedure. Getting 98% of the way there makes a big difference. The magic really happens in the last 2%

It appears that you are beyond the standard degree of frustration that can come with trying to nail cartridge alignment. This exponentially increases the risk of destroying a cartridge or damaging a tonearm. Relax and take a break for a day or two before approaching it again.

Thanks for clarification.