Glider Tail Stall

Recent threads highlighted tail stalls in powered aircraft
experiencing icing. The thing that concerned me was the recovery being
exactly opposite to the wing stall that we all practice and
demonstrate, and thus have ingrained as almost automatic. It also
sounded like the thing that distinguished a tail stall from a wing
stall was buffet in the controls rather than in the airframe. This
distinction is pretty subtle to me, and in the heat of the moment I
wonder if I would apply the proper recovery.

Does anyone know, for a modern 40:1 glider, how violent a tail stall
pitch up would be?Also, if a glider has a totatally benign wing stall,
eg, non-violent wing stall break, would this imply that a tail stall
would also be non-violent?

I don't fly in icing situations, I don't have flaps, and control seal
checking is part of my preflight, so this is probably all academic.
Still, I'd like to know...

-John