I have had my ambi-safety wipe off twice over the past couple years. I didn't get all paranoid about it (there are still the other safeties in place), but it did make me decide to replace the ambi with a single-side on my duty Para. It's easy enough to change back to ambi for competition.
It just makes ME feel more comfortable with no safety showing on the exposed side.
It just makes ME feel more comfortable with no safety showing on the exposed side.