Korg Poly800/EX800 Users

I recall following the thread on parameter wheel ideas for awhile, tho 
it does not appear anyone managed to find a solution... this would be 
the pinnacle of korg mods and make the keyboard infinitely more 
valuable so I have been using what little knowledge i have to try and 
thing of a way, was just throwing out this idea, would it be easier to 
have two knobs, one for increasing the parameter and one for decreasing 
it? such a setup is probably easier to find than a single knob that 
works with two circuits... i have no idea myself however, anyone with 
any suggestions on how to do this please post on the board...

~AJB