Regarding stylus shape, I expect one must consider which records are being played. Few if any mono cutter heads remain which means these "modern" mono reissues are being cut with stereo heads. And that leads to consideration of tip shape and size for playback.
Some time ago I posted my findings about stylus tip and record groves. Here is what I learned for optimizing mono LPs:
- Pre-stereo era, '48-'57, 1.0 mil conical
- Early stereo era, '58-'70, 0.7 mil conical
- Recent reissues, any narrow elliptical profile
Jonathan Carr (Lyra) stated his research determined narrow elliptical stylus profiles are best for their current mono cartridges. But while he didn't specify which LPs were tested I expect they were all recent reissues, thus cut with modern stereo cutter heads.
So if all your mono LPs are reissues produced within the past 20 years or so, that can simplify your choice. Same if that are all original mono pressings from the pre-stereo era. It's when you have a mix of old and new monos this can become more complicated.
Some time ago I posted my findings about stylus tip and record groves. Here is what I learned for optimizing mono LPs:
- Pre-stereo era, '48-'57, 1.0 mil conical
- Early stereo era, '58-'70, 0.7 mil conical
- Recent reissues, any narrow elliptical profile
Jonathan Carr (Lyra) stated his research determined narrow elliptical stylus profiles are best for their current mono cartridges. But while he didn't specify which LPs were tested I expect they were all recent reissues, thus cut with modern stereo cutter heads.
So if all your mono LPs are reissues produced within the past 20 years or so, that can simplify your choice. Same if that are all original mono pressings from the pre-stereo era. It's when you have a mix of old and new monos this can become more complicated.