Has anyone heard the new Audio Technica AT-OC9X series of cartridges?

Sorry to revive an old thread but I'm currently looking at the OC9XSL cartridge for my Sl-1200GR. I noticed AT are doing aluminium headshells specifically for this series of carts in different weights. There's a 13, 15 and 18g option. Which would go best with the cart and Technics arm? 

Headshells make a sonic difference, so in the extreme case of audiophile nervosa one would select a headshell not just  based on its weight but also based on the materials of which it is made, which affects the sound quality. Therefore, you might want to start with the question of what is the weight of the headshell in the technics tone arm, because apparently the cartridge works well at that headshell weight, just in terms of the net effective mass. Select the AT headshell that approximates the weight of the OEM headshell. Since the headshell contributes in a major way to the overall effective mass of the tonearm, you can’t just select a head shell based on its weight alone, without considering the tone arm to which you plan to attach it.

Just out of curiosity, how does the Shibata-stylus'ed OC9XSH compare to the OC9XSL?  I have been a fan of Shibata carts and am interested on hearing about the OC9X version.

The Description in the Link will help with your enquiry.

https://www.analog-forum.de/wbboard/index.php?thread/130158-shakti-macht-erfahrungen-mit-audio-techn...

Just had the oc9xsl fitted to my ittok arm on my lp12 so far, about 20 hours in, and I am very impressed. My previous moving coil was a linn Klyde. I am hearing detail that I hadn't heard previously and it retains musicality, for £650 what more could I ask of it.