I don’t own a QC yet but I am interested in the Mini. Considering that it only has one expression pedal input, the other expression pedal needs to be done via MIDI.
According to the manual, I can only assign a single CC message to the expression pedal.
This basically means that resolution is limited to 7 bits, or a value between 0 and 127.
I know that this is a limitation of MIDI, but MIDI also has a solution for this: using two CC messages, where the 7 bit of data from the messages form a 14 bit value.
This would give a theoretical maximum of 16384 different values instead of 128, or in practical terms, more smoother MIDI expression pedal.
Even if the ADC that reads the potentiometer in the expression pedal can only do 10 bits (which is basically ubiquitous at this point), that is an 8 times increase in resolution compared to just using a single CC message.