Warning: Newbie with newbie question upcoming.
Let me frame my issue based on experience on a Hammond sk1 and its organ section, although I suspect the issue is more general. The issue/question is: how do you deal with the output volume changes that accompany draw bar changes? Naively I would think there is about a factor of nine change in output volume from having one draw bar extended to all nine extended. (I don't know that it is actually a factor of nine, but it is large and significant.) How can one maintain a stable place in the mix with that sort of variation? Expecting the sound guy -- assuming you have a sound guy -- to take care of it doesn't seem to wash on the basis on the basis of what I read over on Reddit's r/LiveSound -- sound guys want volume consistency among patches and will probably bury you if you surprise them with an unexpected volume change. So, is this a real issue and if so, how do you handle it?