I never looked at the Feikert closely but the grids are vague. I know the SmarTractor is something like twice as expensive but it is vastly superior and intuitive. I think most of you would not even have to read the instructions. Each alignment has it's own grid and there is a tiny detent where the stylus goes. The surface is mirrored. Seeing the cantilever from all angles is easy. I did not even have to use the magnifier. If you can see through to afford it, it is most definitely worth it. If you change cartridges frequently there is no better way to go.
Good for you wlutke for figuring it out. It is all about overhang and offset angle.
Good for you wlutke for figuring it out. It is all about overhang and offset angle.