EHX Bass Micro Synth Trim Pots? (The Older, Bigger Version)

[KeithBMI]

Does anyone know what the trim pots do on the older style Bass Micro Synth? I know that one has to do with the gain, but I don't know what the other one is for. I did a search, but didn't come up with any answers.

[DopplerShift]

The other one changes how the note decays. One way and the note will suddenly drops off at a certain threshold and the other way lets the note decay naturally. The trim pot changes the threshold point.

[KeithBMI]

Thank you for your quick response and helpful reply!