The Feickert is a two-point tool and appears to be quite well made with a great ruler for measuring spindle-to-pivot distance. For a slightly different take (which includes a few comments on the Feickert), here is an interesting read on
Arc Style alignment protractors. Be prepared to enter the world of cartridge setup. The
diagram at the Feickert site is helpful to have on hand to keep straight the key terminology/measurements of Pivot-Spindle distance, Overhang, and Offset. Once you have those planted in your mind, the discussion is easy to follow.
Arc Style examples include the Wally Tractor, the MintLP protractor, and the Ken Willis protractor.
I'm tempted to say use what you're most comfortable with, but until you've done it a few times and fiddled with the tool, you can't really gauge which is easiest to use. My best results come from using the Wally - it is easy to use and its mirrored lines are the best I've found for getting the stylus/cantilever in the proper offset angle. Placing the cartridge body square to a grid is better than nothing, but imo its optimal to align on the cantilever.
I can appreciate the trepidation that comes with setting up a cartridge, especially an expensive one. If you have an older cartridge, you might use it to gain initial experience with whatever set-up tool you choose.
- 4X and 10X magnifiers are really good to have at hand.
- A light, especially with a flexible stem (such as the LittlLight) is valuable. Light and magnification are your friends.
- Proper setup can make a huge difference - Give yourself plenty of time, take little breaks to ease tension, and don't forget to breath. :-) It will be worth it.
Tim