This is all very interesting, It's my first "Ducati" crank, and I take your point Nigel re the clock location. I did check the oil nose, and there was no indication of ovality, perhaps I struck lucky.
Your bearing on the gear section is certainly the answer to a worn nose, but in my defence,
"if" the nose is on centre, when running on the bearings, the end of the shaft would show the the greatest error.
Re the run out, we obviously strive for perfection, but in reality with a pressed up unit this is not in the main achievable, as said a compromise has to be made. I got this one to within half a thou at any point, and settled at that. The pin is up to the shoulders, as this is where the wheels returned to there original width before being split.
This is only for road use, so I think I will have to take the chance of a pin failure, but I bow to your greater knowledge on the subject.
Brian
Just out of interest this is a crank I made for my Goldstar, twenty plus years ago, not Ducati I accept, but it does have an Italian GM rod and parallel pin.
CRANK 1.JPG