Upgrade for UMix-Control-Pro? Other controllers?

Hi guys
I have a UMix-Control-Pro, and like it very much. I even have a Stanton SCS.4DJ mixstation, which is OK but the hot-cues don't work as well.
The left jog wheel is becoming less reliable for scratching; the adjustment is right at the limit. At times I have to slap the wheel to make it engage to vinyl mode. I would like to see if it's possible to modify the electronics, or return the controller to Mixvibes for servicing, if that's possible. Otherwise I'll have to look for other controllers.
What controllers do people recommend for Cross? In particular I like to use the hot-cues and the jog-wheels for scratching.
Plus - would it be possible to hook up other controllers such as the DJ Tech VTT-101 in some way? (i.e. get the jog wheel signals from the other controller whilst still getting the rest of the MIDI from the UMix-Control-Pro)
I have a UMix-Control-Pro, and like it very much. I even have a Stanton SCS.4DJ mixstation, which is OK but the hot-cues don't work as well.
The left jog wheel is becoming less reliable for scratching; the adjustment is right at the limit. At times I have to slap the wheel to make it engage to vinyl mode. I would like to see if it's possible to modify the electronics, or return the controller to Mixvibes for servicing, if that's possible. Otherwise I'll have to look for other controllers.
What controllers do people recommend for Cross? In particular I like to use the hot-cues and the jog-wheels for scratching.
Plus - would it be possible to hook up other controllers such as the DJ Tech VTT-101 in some way? (i.e. get the jog wheel signals from the other controller whilst still getting the rest of the MIDI from the UMix-Control-Pro)