cynicalint, that was precisely the point I made to when some potential MFTS people came sniffing around to speak to us...
Also some of the first QFIs who left the RAF to work for a contractor instructing at basic level soon found that the pay rates which had been quoted were nothing like what they were being paid. Also they found that the contractor was assuming that the salary on offer when added to the service penion would be equal to the former military pay. Needless to say, they left the organisation pdq!
One ex-A1 QFI told me that during his 'acceptance check' with a contractor's instructor, which involved close formation, he'd actually had to take control and teach the checker how to fly close formation, because she was so bad!