FWIW, I have used and recommend the Feickert protractor and have done so for years. It definitely is a good device and will get you in the ball park. Several months ago, I bought AnalogMagik software, which measures distortion to help further refine turntable set up. It is expensive, but it does take you further in terms of performance. I have found the difference can be profound. But I will admit that I am a nut. Let's face it, in a day and age when the world is all streaming those of us who are worrying about getting the most we can out of our vinyl records are all just a wee bit eccentric. So, if you want to reach for the next level in performance from your turntable, you need to take a look at options like Wally Tools or AnalogMagik. In my opinion going with either option is more appealing and frankly makes more sense than going beyond a certain level in terms of equipment. I base this opinion on a realistic assessment of the incremental performance difference between my SL1200GAE (~$4K) and my VPI HW40 (~$20K). There is a difference, but it is slight. By comparison, when I used AnalogMagik for the first time the difference on both tables was significant. Moreover, the GAE sounded better than the HW40 before AnalogMagik was applied to the latter.
