Oh my eye!! on a totally different subject, I have just used my new/used Sennheiser S1 Digitals that I purchased second hand from ebay to replace my busted Bose A20s and I cannot believe how good they are. So much more comfortable which is amazing seeing as my A20s were great. Not that I recommend streaming music when flying but the S1s actually fade out ATC when there is a transmission. - Amazing
