Rockyboy,
Dependent upon whether you decided to try the printable Tractor was willing to send you, maybe one way to enhance the Geodisc, would be taping a thread to the origin of sight line, stretching the thread to the center of Arm Pivot, then sighting down upon the Geodisc, lining all up correctly, like some do with the Turntable Basics Mirror Protractor.
I have all three on hand the Geodisc, the Turntable Basics Mirror ($20 plus shipping), and the MintLP.
All are Baerwald Null Geometry.
I felt the Geodisc was good, but did feel the TB Tractor made a slight improvement. The MintLP was a whole nother level better than both, but I don't think you'll find "bad sound" per se using the lesser Tractors, but just some good improvement in sound when using a Tractor with much better resolution like the MintLP.
Perhaps too, use a decent Jeweler's Loupe, or Magnifier with the Geodisc, to better insure you're precisely aligning the Cantilever with Null Grid, rather than just using the naked eye to sight either the Body, or Cantilever. It should help with better Cantilever Alignment accuracy. Mark
Dependent upon whether you decided to try the printable Tractor was willing to send you, maybe one way to enhance the Geodisc, would be taping a thread to the origin of sight line, stretching the thread to the center of Arm Pivot, then sighting down upon the Geodisc, lining all up correctly, like some do with the Turntable Basics Mirror Protractor.
I have all three on hand the Geodisc, the Turntable Basics Mirror ($20 plus shipping), and the MintLP.
All are Baerwald Null Geometry.
I felt the Geodisc was good, but did feel the TB Tractor made a slight improvement. The MintLP was a whole nother level better than both, but I don't think you'll find "bad sound" per se using the lesser Tractors, but just some good improvement in sound when using a Tractor with much better resolution like the MintLP.
Perhaps too, use a decent Jeweler's Loupe, or Magnifier with the Geodisc, to better insure you're precisely aligning the Cantilever with Null Grid, rather than just using the naked eye to sight either the Body, or Cantilever. It should help with better Cantilever Alignment accuracy. Mark