MP 10 has some obvious issues, so I tried the zap fix to see what would happen.
I started the run charging at ~5A, with a pulse of 30A. Next I zapped C2 and C4, which caused no change to C4, but jumped C2 up a notch.I ran that with 5A and a pulse of 30A. Finally I zapped each of the rest of the cells and did the same 5A and 30A pulse.
This seems to have jumped the voltage of all cells so the C2 again fell to the bottom of the group.