I carry a few extra sets of sunglasses in my boat. 2 pairs are higher end SolarBats, and one pair of "cheapies". Anytime someone in my boat wants to tell me that their cheapies are just as good as my 'bats, I loan them a pair for the day. With very few exceptions, by the end of the day that person is asking me to either buy that pair, or asking where to buy them. The "few exceptions" I spoke of are generally people too stuborn to take me up on the offer to borrow a pair. I carry the one pair of cheapies for the occasional non-boater that forgets to bring their own. I still offer for them to do a comparison with my cheapies vs quality optics, and every time - they end up wearing the 'bats all day.
Dan J. - There have been many a junebug (or other insect) that met my lenses at that speed, as well as a few buddies casts. Great point.
All the best,
Glenn