I used a Axiom 61 for about a month..I thought the feel was better than other controllers..

You still will have control over 4 zones as your other controller..

The sliders[49 and 61 key models only] can be assigned to do many things and there are factory presets to get you started..

I use the same host that you are using..and the Axiom worked as it should..

My only problem..I could not get the sliders to work as draw-bars..correctly with Native Instruments B4..

On line[Axiom} techs didn't help..they just referred me to page 12 of the manual..

It's been a while since I used the JV[JV1000] but can't you set the JV80 to 8 zones..Maybe it would make a good controller for you..

I used a XP80 for a 16 zone controller for a few years..