I have a ZYX 1000 Airy, and I love it. It is as precise a transducer as I could have asked for. It plays all of my albums exactly as they where recorded, or as I percieve they where recorded. This is sometimes not good because of poor recordings, but I do not feel as if I am missing any of the music.
I used to own a Koetsu Black and I played that thing all the way down to the candeliver. Even with no tip (that I could see), it still made sweet sweet sweet music.
Having said that. As soon as I can afford it, I am in for a TT upgrade. I will have two tonearms on the table, one with the ZYX and one with a koetsu. There is more to reproduced music than precision. Especially considering my preferences are leaning towards the female voice.
An addition. I will be joining you in the Teres Brotherhood. Just like the Koetsu, the 340 is soooo beautiful, I couldn't imagine owning anything else. My present Gyro is good, but that is no longer my preferred look. The added sonic improvements are also important, otherwise there would be no need.