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.
Like you I have steered clear of Miyajima cartridges. I don't like their very high VTF requirements.