I was a SH Nav and got out in 8 months from the PVR application.
I just asked the poster, took a duff desk job in Bosnia for 3 months and I got my way. Try being nice, polite and helpful instead of banging your head against the wall. It doesn't move!
I'm afraid you can't have your cake and eat it. PVR=drop in flying pay! The good news is that I was working in civvy street during my 99 days of leave I took so 2 incomes more than made up for it!!! Think about doing the same.
Hope this helps?
