"Robin Birch" wrote in message
...
Although I have not had the problem with instruments I have had it with
PDAs in the cockpit. Personally I don't think that polarised sunglasses
are the things to use when flying because of the possibility of seeing the
stress lines and so on in the canopy and the possibility of interference
with LCD displays. I much prefer tinted specs for this reason.

Robin

It sounds like you're stressing out . . . could this be the source of the
stress lines? (g)

bumper