Why are we talking about this as an emergency practice? Its really not,
maybe I should have bailed out of my Nimbus 3 because I lost all
instruments and the yaw string, then proceeded to go XC! This is
standard practice in training, at least it should be. If a student is
chasing an airspeed indicator, they don't get it anymore. If they
call off an altitude without looking outside they don't get an
altimeter anymore. I fly 2-33's and I don't have instruments in the
back, no big deal, can't see the front with an "average" male
American sitting in the front seat anyway.

The local club has a Blanik that they would approach at Mach 1, because
the ASI said 55knts!!! It didn't even dawn on them that it may be off.
A leak in the pitot system was found. But everyone was too interested
in what the needle pointed to vs. where the nose was pointed. After my
first pattern tow I bet a club member it was off, but they weren't
foolish enough to take it.

Yaw sting....if you cant feel your body sliding left or right when your
uncoordinated, you should probably relax some, because you are way too
uptight. But then again one of my coaches said I was too relaxed. On
that note my Discus 2ax didn't have a yaw sting, and my Nimbus 3
doesn't have one either, and I probably won't get it "fixed" before the
Opens. I fly in the mountains and I don't feel that it is hazardous.
Plus that sting is way too much drag.

If your "eye ball gauge" is getting rusty, maybe you should take
the time with your flight instructor on your next flight review to work
on it, perhaps even earlier. But then again we could always just wing
it and let it get worse over time.