In response, selection of flap depends on the situation, and 40 degrees of flap on a C150, C172, C206, I would say is there for short field performance only. I would say full flap, might not be required at EGNX, and by way of example, I may be wrong but the Chipmunk and Bulldog full flap was between 20 and 30 degrees, that is very different to 40 degrees of flap.
In relation to solo stall practice in a bulldog, I agree, despite of the vices of the Bulldog and the B121 in the spin, the RAF Cadet Pilot had the option of a parachute.