My original purchase was with the WS6 Master mounted on the sports-like over-the-ear mount. I very soon thereafter opted to purchase the XL headphones.
My detecting has mostly been on the beach where I find myself almost always using the XL headphones because of the noise reduction (wind, waves, people) resulting in much better audio.
I find them very comfortable for at least a couple of hours at a time. Yes they do get sweaty on the hot sunny days but any full-cup headphone will. So I see it as a miner tradeoff (IMO) for the much better audio performance. They are also perfectly integrated with the remotes, turning on and off with the controller. I really find them perfectly suited to my detecting style.