This is it: Dr. Feickert's next generation protractor! We welcome this improved version of a very effective tool. The parameters are now carried out to utilize not only Lofgren and Baerwald equations but also Stevenson. This provides even further choices to reduce the distortion that can be caused by a less-than-ideal tangential position of your cartridge while tracking the grooves of your records. This is the best solution for accurately aligning your cartridge with a wider variety of tonearms. It is accurate, compact, more versatile and even easier to use.