Hi Jari

> Mixers with linear control are usually recommended for CV mixing.
> However, I prefer logarithmic: When I apply small amount of modulation,
> I seem to need respectively fine control as well.

That would be true if there was no master control; but the mastercontrol
allows to reduce the allover range of the single inputs.

Another possibility is to add individual switches per input, which
select a wide/narrow range of the corresponding pot.

> Ideally, for CV
> mixing, I would prefer exponential bi-polar control, but such isn't
> available perhaps for technical reasons.

Pots like this are not available to my knowledge. One might realize them
by using double(stereo) pots with one inverted layer. But this would
require a high electronic and/or mechanical effort for something which
can be done with linear pots very simple.

Florian