Dave, here are a couple of sources which explain different styli and groove dimensions as well as other things.
https://www.badenhausen.com/VSR_History.htm
https://dgmono.com/2017/02/17/modern-mono-playback/
I think we're loosing site of what matters, being what stylus type would work well between older mono pressings and newer mono pressings? The reason why I believe this is in need of discussion is because stylus geometry changed with the evolution of the record. I don' think anyone would disagree that the 1 mil. conical stylus, while optimal for early mono records, wasn't ideal for later stereo records.
I understand that early mono styli track well and sound fine riding higher in the groove than a stereo styli needs to (i.e. pinch effect) however this is not he only reason for considering what differences between styli are important.
https://www.badenhausen.com/VSR_History.htm
https://dgmono.com/2017/02/17/modern-mono-playback/
I think we're loosing site of what matters, being what stylus type would work well between older mono pressings and newer mono pressings? The reason why I believe this is in need of discussion is because stylus geometry changed with the evolution of the record. I don' think anyone would disagree that the 1 mil. conical stylus, while optimal for early mono records, wasn't ideal for later stereo records.
I understand that early mono styli track well and sound fine riding higher in the groove than a stereo styli needs to (i.e. pinch effect) however this is not he only reason for considering what differences between styli are important.