Dave Merrill
Axe-Master
I don't think that's right Unix.Make-up Gain "makes up" gain that is reduced due to compression.
If you're not hitting the threshold then there should be no compression and thus no make-up gain.
Makeup gain is based on a guess at how much incoming signal will be reduced, based on the current settings.
I think it doesn't take input signal level into account. That means a lower output guitar that doesn't hit the threshold gets the same gain compensation as a super high output one that's way over the threshold and triggers tons of compression.