Put a timing light on it, see if it's advancing smoothly between 1000 and 3000 RPM.
With new caps the coils all tested within spec primary & secondary.
I'm not seeing any advance with a timing light.
CV slides. What's the condition of the diaphragms?
You have voltage to the coils in excess of 11 vdc? I'm not suggesting caps and/or coils are bad. I'm saying you need to check for voltage drops due to corrosion.
My meter says that all three coils see about 11.8 volts
So, it was electrical.
When I had an open pickup coil on mine, the bike would not start. Since there are two coils in there, perhaps it matters which one is open. You should read some resistance on each leg. Infinity is bad in this case.