A chap called Dai Heather Hayes at Perth was talking about doing aero training (and possibly hire) in an S2-A although I haven't spoken to him for a couple of months about it. Worth a try though. Tayside have a Tipsy Nipper at Dundee which is a scream, although it is group owned and you need to buy a share. Not quite the performance of your Extra obviously but flicks a treat and costs but a fraction. Nothing else that I know of in Scotland at all.