I replaced Lucas points with Japanese Daichi points because the Lucas points had done about 20,000 miles, which was the most I ever managed to get from US made auto points in the 70s.
The Daichi points failed in 300 miles so the old Lucas points went back in and worked fine for at least another 10k.
Finally I managed to locate some NOS Lucas points and installed those, although it wasn't necessary.
I kept the old Lucas points as they are still working fine. I've now put away 4 sets of NOS Lucas points for that bike, so that'll more than see me out.
The Lucas points are the highest quality ignition points I've ever encountered and we used to install lots of different ignition points, made in the US , Germany and Japan.
I have also had a couple of Lucas copy ignition switches fail.