I didn’t exactly modify the tooth angle, due to wear and possibly variations tooth to tooth of the original sector it wasn’t clear what the intended angle of the original was, so I erred on the side of keeping the pawl engaged without slipping out and disengaging. This may make it a bit harder to disengage, requiring more force pulling the handle back. I would try the new sector with original pawl first to see how it works since replacing the sector is a lot easier than replacing the pawl. I can modify the design if needed on a 2nd round.
I have had problems with worn park brake ratchets disengaging. A worrisome experience on those wine tours where you end up parked on a steep hill right behind someone else’s prize jewel. I carry wheel chocks now.