Mono Cartridge

For your arm you need Grace F14 MONO 

Just to be clear, are you saying 1.0 mil Spherical Stylus?

For flexibility, I might suggest you look for a mono cartridge BODY that accepts either spherical stylus and/or elliptical stylus (some are also offered with advanced stylus shapes). Then, someone like yourself, more informed than me and others, can change the stylus as appropriate depending on the groove type or range of years of groove type.
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some unsolicited mono yap:

Learning here, and having added a dedicated Mono Cartridge, I simply chose an elliptical stylus from Grado to get started/hear/prove it made a difference.

Now I heartily endorse using a true mono cartridge rather than a stereo cartridge. My two older McIntosh preamps (C28, mx110z), and mant others have Mode Controls, MONO being one of the settings. For many years I thought that was ’good enough’.

I have many mono LP’s, mostly Jazz. Some mono lps have only subtle improvements, many with obvious improvement, and some with significant improvements.

Some are not involving, they come off like a history lesson, very unlikely to play again. When played with a mono cartridge become an involving musical experience, keepers, intend to enjoy again.

Mono includes the ERA when so many greats developed their skills, new styles emerged. Mono LP's were still made after the technology of stereo was developed in 1958.

https://www.learnjazzstandards.com/wp-content/uploads/chord_charts/JAZZ_STYLE_PERIODS.pdf

Sometimes A lump of sound changes to reveal the distinct sounds of individual instruments. Reducing inadvertent separation by not reacting to any vertical motion improves the sound.

Others might use better words, that’s my attempt to explain what I hear.

@noromance Thanks but I am looking for a 1.0 mil stylus.
@chakster  I am sure that is a great cart but they are pretty hard to find NOS.
@elliottnewcombjr  Open for suggestions but looking for something really good.

andysf

Does anyone have experience with either the Phasemation ...

I had a minor issue with a cart made by PhaseTech, which is what Phasemation previously called itself. Dealer couldn’t help. Distributor and manufacturer did not respond to polite email inquiries. Fool me once ...

I have an SL1200 GAE and it is my primary mono TT, which is the same as your G except for cosmetics.  Currently I have the following mono cartridges for it:  VAS Nova, really good, you can order it with a 1.0 mil stylus I believe.  Ortofon 2M SE, ordered directly from Europe.  This is a Shibata and I am not sure if they make it in 1.0 mil, bit it costs nothing to ask.  Ortofon is very responsive to email.  Audio Technica AT3 Mono, spherical, available in 0.7 or 1.0 mil and a very good cartridge price not withstanding.
Like you I have steered clear of Miyajima cartridges.  I don't like their very high VTF requirements.