Values of trim pots?

[zener]

In the Insanity Box, all the 100K trim pots follow another value enclosed in parentheses () and the values are lower than 100K. What are these? What does it mean?

This is my wild guess :? : The enclosed values are the values where the sound (distortion, gain, sustain etc.) is deemed to be at its best. :?:  

Thanks for any help.

Zener
(my dad named me after the diode) :roll: