Ok for the center calibration.
But for recalibration, what are the wheels movements you did on Midi-Ox recording?
Not sure I understood, because, even your pitch bend is not functioning properly(range is very narrow).
mod wheel does not go full range either.
Can you do the following midiOx recording:
1/ pitch bend: start from center position, go to 0, go to max, and release to back to center.
2/ modwheel. start from 0 go to max
please send me theses two capture so I can have a clear understanding.
Thanks for the time you spend on this.