Dan.
That area is most definately not on the approach to Fife. Not if you have more than two brain cells.
And I still disagree, pissing about aerobatting in sight of a gliding site is bloody silly.
You say you have seen them from your house. Have you actually been in a 14 a/c gaggle under low cloud along Bishop? Or on the day/weather in question, move out from the hill into the wave lift? cos that's where it comes from.