Well, there is validity to the method assuming your anti skate was adjusted perfectly and the output of both channels of the cartridge were exactly the same. 1 db is not that much. The best cartridges match channels to about 0.5 dB. I do not care so much about output levels. I care about record wear. The stylus has to be dead upright in the groove.
A careful eye, a mirror, a bright light and perhaps some loops if you have old eyes like mine are the best way to adjust azimuth. If you have a good cartridge everything else will fall in line. If not than at least you won't be excessively damaging your records.
A careful eye, a mirror, a bright light and perhaps some loops if you have old eyes like mine are the best way to adjust azimuth. If you have a good cartridge everything else will fall in line. If not than at least you won't be excessively damaging your records.