Even though its morning, soon as I finish post this I may very well go hit the bottle of rum sitting in the back of my liquor cabinet. Surely this thread has taken a direction the OP never intended but discussions involving Campag bits always get...interesting?

The reason I ended up with those BSA parts I pictured yesterday is that in the throes of wanting to make my bike a full-blooded Italian build, I originally bought a Campy pista hub that the seller stated took Italian threaded cogs. I have quite a few English thread cogs laying around so for curiosity sake tried a couple on it. They did not really want to go on and I was not going to chance ruining the thing so did not force anything. I consider myself lucky to have found someone willing to trade the hub I've got now for it.

As part of researching further, I ran across some old Campagnolo catalogs online and found that Super Record Pista hubs were made in 3 threadings: 35x24F, 34.7x1M and 1.37x24F. I also found several different thread patterns for available lockrings. Campagnolo's new lockrings are 1.32x24F, which I could not determine for sure if it fits on old SR Pista hubs.

The seeming multitude of thread varieties I found for Campy pista hubs, cogs, and lockrings finally got to be too much for me so I ended up just sticking with my Jap wheels. Threads like this reinforce my decision.

Now to find that Rum...or maybe I should have some Bourbon instead?