Cartridge Setup w/Geodisc by MoFi

Rockyboy- the Mint Tractor is only $100. Maybe try one of the reworked Denon 103s with the Mint and you could stay w/in the cost of a Glider.

The problem I find with the Geodisc is getting it aimed directly at the centre of the vertical pivot. Tough if you can't actually see the pivot itself.

PM me and I'll e-mail you an arc protractor for a tonearm with a 239 mm effective length. Verify that your Pivot-to-Spindle distance can be adjusted to 221.68 mm (if it's not already at that distance). Print it out on an overhead transparancy, buy a 5" craft mirror, and you'll have the tools you need until you want to purchase a MintLP protractor.

A friend has a Geodisc and I have a Feickert. When setting up an arm where the pivot point can be easily sited, they come quite close to agreement on proper alignment (we used both on a Schroeder Reference). I much prefer the Feickert for ease of use, but the Geodisc is not too bad.

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