Hi,
The info I recently read stated that anyone who PVR'd would suffer a drop of 50% in any specialist pay recieved immediately.
My understanding is that PVR is different to signing off post 22 or signing off as part of an open engagement with 12 months notice.
So if "your mate" is to PVR then there is no doubt his enhanced would drop to 50% post signing off.
I am awaiting some clarification on the PVR/Signing off issue from a friend at the moment who firmly believes the two are different and claims he has the paperwork to prove it.
hope that helps
Che'