have you guys tried pinching and rolling the headband diagonally (both ways) for a few minutes.. It softens up the bumps quite a bit...they come pretty stiff from the factory, but loosen up like a baseball mitt does with some manipulation.
Also, the directions for changing the rubber bands would also release the headband, and look pretty simple...
To exchange the rubber loops 6 break out cover 3
by inserting a screwdriver into the notch below the
CE sign. Now undo locking knob 7. It has latches
that have to be depressed while simultaneously
pressing the knob out.
Is the 601 headband as soft as the 702.65's (probably cheaper if they still have it.)