Scooterotica

As some may know, I'm trying to fit a disc front end on to my GS150 that I built at the beginning of the year and wheel alignment was out about 1/2 a wheel. 20/30mm.
I have just measured my mates Primavera (original) and his wheel alignment is out about 10/15mm. Is this normal on Vespas
If so it would make the job a lot easier. If you can be bothered can you check your scooter and let me know how much of a difference there is.
Gary

I just measured my Super with px fork and it appears to be spot on. I used a straight bit of timber aligned on the back wheel and the front wheel was in the same alignment.

You have a PK fork? I seem to remember something similar on Modern Vespa with a sip conversion fork... can't remember what the outcome was and if there was a remedy sorry. However if the Primmy came that way and nobody ever noticed before then it's probably not a problem.