Fairy cakes are always good, but dont stand up to aerobatics very well, as they squash to easily, and become all deformed as they bounce around your lunch box.
Ahhh, it was you, I sat on one of your left overs last time I flew. You should try a bit of flapjack, now that's where it's at. You need to remember to adjust your CofG measurements during flight, depending where you store the lunchbox.
Remember the Bero advert with the ducks.........