Nautilus Volume?

[Natman]

Hey all, I successfully made a Nautilus a couple of years ago and I dig it a lot. However, the volume is way out of whack for any practical use. The internal trimmer is all the way down (CCW) as per instructions but the sensitivity knob has to be up around noon to trigger with most of my pickups and at that point it's just too loud. Has anybody messed with changing the trimmer pot value or other solution for this issue?

Thanks!