But sufficed to say - the pedal gets more gain and sounds more 'airy' and more like a mic'd cabinet as you drive the Voice up, in my opinion.

However, if you spend some time with it though, you can get some great moderate distorted sounds from it with the voice control around 25% and the mids and highs boosted a little

I scoop the mid, crank up the gain and voice about three quarters of the way, add some compressor to tighten things

When I turned the "voice" and "gain" settings close to all the way clockwise, I got a weird howling/shrieking sound

This happened whenever I turned up the voice and gain together

I'm keeping the Gain all the way up, the Voice at about 10 o'clock - Bass low - mids and trebs high.

So . . . in my experience you can't dime the voice and gain at the same time