If you are going to adjust azimuth "visually" (Chakster), then you really ought not to have a tonearm with azimuth adjustment capability, because in most tonearms, the default position of the headshell will already give you 90 degrees of azimuth, assuming that is the goal Chak has in mind. After decades of fiddling with azimuth and in fact being motivated to buy my triplanar tonearm for the very fact that it permits easy azimuth adjustment, I have come down on the nihilist point of view put forth by MC. Incorrect azimuth adjustment, in my opinion, can do more damage to the stylus, to the LP, and to the SQ, than can just going with 90 degrees. Yes, in some cases with some cartridges, that will be not the perfect solution, and in those cases perhaps also damage can be done. But I decided in the past few years, I can live with that. I also own a Reed tonearm with azimuth adjustment, and I own a Signet Cartridge Analyzer which permits adjusting azimuth electrically, using a Shure test LP which I own. I don’t use them any longer (the Signet Analyzer and the test LP; of course I do use the Reed tonearm with azimuth set to 90 degrees [top of headshell parallel to LP surface]).