Thanks for the info D. Do they still make Polaroids???, BTW:
1. S-E-R-E-N-G-E-T-I. Sorry.
2. Model = drivers, henna.
3. non -polarised/-polarized/-pasteurised, you choose.
4. favourite glasses = Lava. Polarised. Love boating.
5. For more, try a search on pprune, this has been covered at length before.
6. My personal opinion is that if you want to fly an aeroplane and think that seeing the instruments under prevailing ambient conditions is important, then choose your eyewear weapon[s] accordingly. Not many fashion models fly planes.