I will give them at least a month of time since I should be getting a new amp I want to try them with by then. I really want to like them and keep them. Their main competition for space in my collection are the T50RPs and Senn Momentums. Neither are as good with classical, but both do a good job with everything else are are more comfortable (at the moment). Trying to get down to just 3 sets (HD800, closed all-rounder, IEM).
The clamping does not bother me. I agree about the bass, there's no mid-bass hump like in my Grado, but there is a bit of deep bass the Grado doesn't have, as in, orchestral bass drum whacks, think the complete Prokofiev symphonys with Gergiev.