I believe you and appreciate your experience with lots of IEM's - these are my first MMCX connected IEM's besides the 2002's which I returned without changing the cable. I appreciate that MMCX connectors freely rotate and that's part of the design but it's poor design. Makes it more annoying to put in your ear. Again if Dunu didn't think it a hindrance why include a non-rotating design in some of their IEM's? I think that was smart, except not including it on all of the models. And the 3001's I have at least, did not rotate at all out of the box. That was nice.