Audio-Technica AT-ART9 phono cartridge

Yes, I am now running the ART7 into a Manley Steelhead which directly feeds the direct-drive amplifiers of my Beveridge 2SW speakers (and also the outboard woofers that are Transmission Line types driven from a Dahlquist low pass crossover, at ~80 Hz).  I probably have 10 hours on the ART7, at most, so it is premature to make a judgement.  However, it is obviously a very good cartridge.  This system has always previously been driven from an MM or MI cartridge, either the Grace Ruby with SS re-tip or my Acutex LPM320 STRIII.  I want to do a really long term comparison of the ART7 to the Acutex, before I come to any conclusion.  However, it's clear that the two are different flavors, so far.  In my other, completely different, system, I recently installed a ZYX UNIverse (the original UNIverse).  I was able to purchase a very low hours used one from a trusted friend who bought it from Sorasound.  I have more hours on the UNI; THAT is a great cartridge (running into an Atma MP1).  I will have to move the ART7 upstairs in order to do a fair comparison of those two LOMCs.  But they are both, obviously, a bit better than any of my other LOMC cartridges.  (Sorry; I am not making with the usual audiophile adjectives here. I don't even trust myself to use those words yet.)

Not surprising that an ART9 would completely crush a Grado MCZ.  MCZ was noticeably inferior to Grado TLZ and XTZ, 30 years ago, to my ears in my system, of course.  (I don't mean to sound snotty, but maybe I do.  Sorry.)  I still have the TLZ, but my sample seems to have lost "something" after 30 years in storage; I brought it out last year for a trial re-run.  It probably would benefit from some patience, while the suspension loosens up, if it will ever loosen up. I've got an ART7, still in the box.