insidiousdead... I have a feeling you are using the wrong setting on the EQ knobs. The CC values on the knobs is 0-127.
i have a few questions for you how are you measuring the MIDI value -124 to -127 the middle value is 63.
Are making your own mapping I am 99.9% SURE THAT YOU HAVE MAPPED THE KNOBS TO RELATIVE AND HAVE AN ULTRA LOW SENSITIVITY LIKE THE default 10%.....Either increase the sensitivity to 100 or set the TOC to: Fader/knob and the interaction type to Direct.