Hmm, something must still be wrong with your pedal. When set up in “sitting” position, it should be at 127 when the pedal is horizontal. Please check that you put the pedal into the “sitting” position correctly. There are two things to make sure of:
the “lip” of the pedal (1) needs to go inside the second slot (2) on the bottom (for “standing” it needs to be in the first one (4))
The “block” end of the pedal (5) needs to sit on top of the frame in the bottom (3) part - for “standing” it sits inside the frame.
This is what things should look like from the side in sitting mode:
The pedal block sits on top of the frame, the bracket is anchored inside it
When things are in standing mode, the block sits inside the frame, with the bracket clamped from outside and visible:
So, with the screw turned to 0, the pedal looks like this fully pressed (and at value 127) in sitting mode:
No need to go beyond horizontal for 127. When it’s fully pressed like this, turning the screw up to 10° moves the pedal up turn by turn.
When in standing mode, the pedal looks like this fully pressed / 127:
The screw can then be used to push it up towards horizontal so you have some spring-loaded boost, but I keep the screw at 0° - no need to push for the pedal to stay at 127.
In my experience, shifting correctly from standing to sitting mode requires completely removing the hook screw and the clamp and re-seating the pedal correctly. Simply loosening the hook screw as the manual says doesn’t work for me.
Hope this helps!