So we are all reading from the same page, here are the relevant bits from both the Spit MK I and Spit MKV pilots notes. (The Spit MKII section is pretty much word for word whats in the MKV manual)
SPIT MKI
SPIT MKI ON FLICK MANOEUVRES
Warnings on the dangers of high speed flick manoeuvers but no real dramas on Lower speed flick manoeuvres, makes sense as no chance of real overstress or excedence of rolling G etc. As you can see pilots are being encouraged to experiment with these
The section in the Spit MKV manual on Stalling and Spinning.