hi! maybe someone here could help i own a DMM deluxe reissue bigbox, the problem is that it slightly distort the signal. so if i want a clean signal i have to turn down the level pot, but this means that i have different volume levels with the pedal off/on. actually i use the level pot around 1/6, very low. if i go up the sound is totally distorted. i read around that a trimmer regulation should fix this. anyone knows whic trimmer has to be regulated? (if the trimmer is the issue)

thanks!