Yes, it's an old thread, but information remains information.
I installed capacitive discharge on my old 57 step side. That dropped the amperage across the points from around 7 contact point frying amps down to 200 milliamps (2/10 of an amp).
The results were that the points stayed in good shape long after regular points were crisped, often in the first 500 or so miles, and the points lasted so long, instead of burning down to nothing, the rider lobe wore down, years in.
I didn't understand this until coming home from work, about 25 miles away, and the pickup started running rough, a couple miles from home. I got home, checked the points with my gauge, and they were all but closed. Hmmm. Must not have tightened them well. Next day, or two, later, same thing and at about the same place. Checked the gap again and it was all but closed, again. That turned on the little thinking light and it dawned on me the lobe rider had not been lubed in a few years. Sure enough, compared to stock points, that little tab didn't exist anymore.
The truck always started like a dream. And, if the capacitive discharge system croaked, or I had to bypass it for tuning, it was just a matter of reaching in, unplugging the two wires feeding the points from it, reverse them, and I was back to stock points.
My next truck was a 69 step side (about 40 years back). For that, I went to the new fangled systems, which was magnetic pickup.
Loved that old cap. It and my manual choke got me going better than my dad's new rigs in the 50 below of Twisp and Winthrop, Washington.
