Boss VF-1 Effect Processor

Hello everbody,

I am busy to make build my own expressionpedal.
Is there anybody allready did that?
Any hints or tips?

And..........

I used midi from the computer-sequenser to control
the VF-1 but it sounds awful because your hear the
127 steps of midi.
I think that with a expressionpedal without midi (so, analog)
you get a linear control of volume, pitch, etc.
that is a big different and sounds a lot more professional.

Any reactions I this?

thanks!

Marcel from the netherlands, Amsterdam