I have used the David Clarks for a long time, was very happy with them, but sometimes had issues with clarity of reception at long range, hearing faint transmissions over engine noise. I had a try of the Zulus and liked them - but more recently when I flew with Curtis at Camden I used their Bose Xs and they are fantastic. I bit the bullet and got some. Recent trips have shown incredible clarity with faint transmissions. I have no regrets with that purchase, notwithstanding the initial price tag.
