As we know, Bill is the undisputed master of the eBow. One thing that has always puzzled me. Seeing Bill play eBow live, he seems to switch to it with no change of volume, no pot adjustment, no pedal. You can see this (I believe!) in Beyond These Clouds The Sweetest Dream on the Rocketeers DVD (if you don't have this, BUY IT NOW). Yet in my own humble experience with an eBow, there is a MASSIVE increase in gain when you use it and the entire house starts to shake and crumble until you quickly hit the volume pedal! I should add that my eBow is the modern plastic-case version not the stainless steel original which I believe Bill has.
best wishes to all!