A few thoughts.

Assuming any human has the potential to panic and become dumb during a
stressful situation, why don't we do what the airlines do? They
practice the emergency over and over until it is muscle memory and
becomes an "abnormal", not an emergency. How? Personally I think
Condor flight simulator can help a lot. After not soaring for a week,
I always use Condor to aerotow with strong crosswinds from various
direction. With full water it is very difficult. I release when I
get in trouble on the ground, and I talk to myself out loud. "No
remaining runway, field to the right, right 180 etc." I do all the
checklists out loud. Condor does a wing rock for release, so that
burned in pretty well. A sim set up with random failures helped me
with my multi rating. After the sim, I was always waiting for that
failure anticipating and expecting it to happen. I wish Condor could
be programmed for failures to help with safety like other home sims
can.

On the radio thing, I find it fairly hard to hear radios in gliders,
and I miss calls too often. Power planes with headsets are
wonderful. I'm considering some kind of headset that works for
soaring. (suggestions appreciated)

Many of us look at accidents and think "I would never do that", but
that's dangerous thinking. You have to train for the time when Mr.
Panic is at the helm. Aaron