I did have a short where the screw goes thru side of distr. Replaced screw, bushing, copper tab - which included a thin piece of paper for insulating inside of distr. Not worth a crap. I put a plastic washer behind the scrap paper and have good voltage to the copper strip.
However when I connect the copper tab to the new points (screw) and new condensor - I have no voltage (with points open).
Next step is to remove condensor contact to points screw and check again.