Electronic Distributors From Rick Ehrenberg

Talking about tweaking the curve via welding, or using a limiting plate, it's been jeez, at least 30- 35 years ago I recall reading somewhere about filing the slots on the sides and using cheap brass furrels (vs. actual bushing for that purpose) which are slipped over the pins as an option to limit advance. I can't recall if bushings for mopars were available at the time, I never tried that, maybe was a GM thing?, just wondering if that is still done (using furrels or actual bushings) $25 for a plate ain't much money these days