I like to use my guitar's volume knob for swells. This is easy on my Telecaster with my pinky finger, as the sweep / range is ideal for smooth swells. But it's much harder to do swells on my Duesenberg Fullerton, as the volume knob has a wider range. So the same pinky finger movement only gets me to, say, 75% volume on my Doozy. Could I somehow "mod" my Doozy so that the volume knob has less of a range?