Jdolgin,
As it's clear that you'd like to hear about some direct experience with JMW9 & Airy2, I can offer semi-relevant experience. I'm currently using a JMW12.6 with the Airy3-S-SB. It strikes me and many visitors as a very good combination. As Doug noted above, the silver base weight from ZYX(or the VPI weight), denoted as "SB" in the model, is required for successful matching.
I'd venture to guess that the Airy2 would be great with the JMW9, and you'd find it worth the price of admission.
FWIW, I second the comment about records having to be very clean, or you hear impact of every piece of dust. Cheers,
Spencer