Power Disc conversion/ proportioning valve question

Bled the brakes at all four corners and was able to get it out on dry pavement today for some hard braking and everything feels as it should, no loss of pressure in the brake pedal and car stops in a straight line even when locked up. Only issue is the brake light still comes on under hard pressure. May swap the proportioning valve out next or possibly try a new electrical wire at the valve, old one is bent up inside but not sure if that really
Do this:

Not running or driving. Sit in the car and kinda turn your foot sideways and then jab/stomp on the brake pedal as hard your can. (Once or twice) This can reset a proportioning valve back to the neutral position and stop your brake light issue.