Curio
I have both the MintLP for the Phantom and use the magnifying glass and the designers Graham geomtry sounds better IMO.
I believe the MintLP tractor for the Phantom uses Baerwald geometry. Bob Graham does not. That would be the primray reason why the Graham alignment gauge (when used correctly) would not match the MintLP.
I too thought that the Graham jig was flawed, but guess what. I actually spent some more time and effort in using Grahams's geometry and it does indeed sound better and more musical to my ears.
that in the long run is what matters. That is why the Uni Tractor appeals to myself, as hopefully there will be another level of accuracy, but with the geometry of the tomearm designer.
Try it for yourself and let us know your results.
cheers