On Tuesday, July 15, 2014 6:48:26 AM UTC-4, Eric Munk wrote:
If a glider does not spin (like an unmodded ASK-21), it will not be

involved in a spin-related accident. Unfortunately pilots do spin.

Sometimes even if they don't want too. And most aircraft they fly after

their training on ASK-21's do too.

Any glider will do the part of the spin that will kill you, even if it does not enter a sustained spin.
Some are simply more tolerant to pilot error.
UH