AAGF wrote:

.....I solo'ed in a T21b back in the 70's at Portmoak in Scotland
- they were a good (unstallable, unspinnable) trainer in their time.

I WANT trainers to be stallable/spinable. A student will advance to
gliders that can (and will) and I want them to know how to deal with it.
You understand that this is a religious war :-).

Tony V.