"Tim Taylor" wrote in message
...

There are old wives tails form early military training that it is
mental, but so far no data I know of that back that up. Please don't
spread rumour and misinformation unless you can provide good data to
back it up. You are not providing information that will help and
really only confuses the topic.

You are entitled to your opinion, and entitled to post same here. My opinion
is informed from observing myself and hundreds of my shipmates in my Navy days
and years of providing Commercial glider rides and instructing in gliders.

YMMV

Vaughn