Sumiko Amethyst New Reference MM

Heavy any of you regular MM fanatics had a chance to test one yet? How does it compare to the 2M Black, VM760SLC, MP-500, etc.?
I too have been interested in the Amethyst and this group of cartridges. I own the Sumiko Blackbird (high output) and overall like it, but would like to acquire a good MM cartridge.

I found this thread while searching for info on the Amethyst and thought I would move it forward in hopes that maybe someone has some experience since this thread was introduced.