[sdiy] linear vactrol driver circuits

[Julian]

Ive been considering using vactrols to add CV control, but am wondering what 
my best approach is for driving them.

Im thinking along the lines of a CV input jack, and a front panel pot, and 
an opamp mixer / driver for the led, but am wondering as to the best way to 
get away from the log response of the vactrol.

Im sure this must be a common issue when using vactrols, so im wondering 
what other people do?

Julian