A new module idea - having seen that the Eventide Timefactor pedal has an expression input
(as do many other descent effect boxes), I think it would be ace to have a module that was
tailored to convert control voltages to a suitable resistance to control an expression pedal.

This module would have to work to produce a resistance from a control voltage that could
potentially be negative (like an LFO) to control the whole range of the expression input.
Another useful addition would be a voltage controlled switch to control effect on/off or other
settings.

If theres another method of doing this which is currently available I'd love to hear about it!

-andrew.