Is the very loudness controllable? Or are you saying it's very loud in comparison? If you have the drive circuit engaged, it's gonna be a bit louder...when I do, I have the output on channel 1 at noon-1:00 and the output on channel 2 between 9-10:00. [I'm Reeder modded too] With the drive circuit off, the channels should be pretty darn close to each other. If not, make sure you put the knobs on straight!
I mean the knob farthest right on the individual channels, the one labeled Master. [sorry for the confusion, I thought they were labeled the other way around] And yes, channel two switched to clean instead of drive.
It's not louder, the volume taper on the new pot just happens sooner so the comparable position setting is much louder. This is similar to mark series amps where most of the volume happens between 1 & 3 on the master. Randal actually states in one of his articles that the LSC was designed as a mark II done right.