Definately recommend Serengeti's. Remarkable lense but they do come at a price. You will have to search around for a good pair...not many outlets stock them unfortunately. Haven't experienced any visual illusions with the polarised lense since i've had them, and i flown in some extreme weather! The main problem arises when flying in glass cockpits where, at certain angles, the PFD's appear to black out. But if you aren't flying in glass cockpits, then there's no problem.
