Ah yes, I once enquired about the terms of PVR.
I have pondered these many years whether that enquiry had anything to do with being given an unrequested ATC qualification
Not that it made much difference in the long run.
Re FJ; we'd a number of Harrier and Reds guys convert straight on to the B747.
Didn't seem to have any problems. One of them said the greatest difference was the inertia of the machine (I'd have thought assym as well).
I expect these were a little above average
again