Everything You Wanted to Know About Ignition Advance

I'm a carburetor and distributor guy. I'm old. You're not gonna change my mind.
All good. Between my Roadrunner and my wife's GTO, I have SIX 2bbl carbs to tune! It's not for a lack of 6bbl EFI systems, like the Fitch, I like my carburetors! My Charger R/T I bought in 1978 when I was starting my senior year in high school had a dual point distributor, and I changed the points and condenser, all of the spark plug wires, cap and rotor myself, and set dwell on the points. I even recall an "old school trick" regarding setting one set of points with a smaller gap than the other, I think it was supposed to give better performance throughout the entire RPM range? I'm not sure. I also recall getting a springs and weights set for that distributor, but I didn't really know what I was doing at the time. I learned quickly as making the wrong mods had a noticeable detriment to performance.
Now my Roadrunner has always had an electronic ignition, and after Chrysler electronic ignition I switched to the FBO setup, and the Progression Ignition is going to be my 3rd (and I hope final) setup.