Waldo: is Old Sarum (near Salisbury) in the right area? if so speak to David Scouller on 01722-322525. His display and competition days were quite a while ago but he's hugely experienced (CFS, ran ETPS, ....)
BEagle: I was surprised by that para in Training.com. It's always seemed pretty obvious that an aero FI rating would be needed for aeros on any instructional flight - have there really been lots of people "teaching" aeros without the tick on their rating?
HFD