I have actually used both kind of adaptors, and the difference is not all that big after all. But yes, i went for XLR on both my Bose Headsets (A20 and still waiting on my ProFlight) and use the adaptor for the 2 plug one, but mainly because in my current company XLR is the norm and only a current batch of dry lease aircraft, mainly based in my base, are equipped with the 2 plug connector.