Shawbury has 1 dedicated low-level training sortie then straight back into the Nav - which is mixed but mostly done at low-level, but at the end of the day is used as navigation training as opposed to LL flying. Worst case?? £10K per pilot.
The airframe cost alone to the Americans of being shot down (not running out of ability) of Iraq and Afghan runs into hundreds of millions of pounds (not dollars!). PM me for details if you'd like...
Southside you're talking out of your ar5e.