I'm looking at the K10Us. Been through IE800 and SE846 recently, and the SE846 is a bit too dark for me (recessed highs), and resolution/clarity is a bit lacking, but I like the punchy, deep bass and sweet mids. IE800 sonically is very good (perhaps a tad too much treble), but the design is too bad (non detachable cables at the buds) and the isolation is not that great. Ideally I want something like the SE846 but with a bit more treble and clarity, but not bright (still lush) and with a slight emphasis in bass/mid-bass, kind of a love child between the SE846 and IE800 in a way.
My question is, is the K10Us like that? And if so, how does the K10Us fit in terms of comfort for prolonged periods, because I'll be using them daily for hours. And what are the general consensus on the custom K10 model vs the universal K10U model? Are there any sonic differences (I've heard people saying the metal casing makes them brighter...)? If the fit of the universals are great (obviously customs could be better, but I'm fine with good universal fit) and they sound the same, I would prefer the K10U model since no need to get impressions + faster ship time + easier return/resell. Thanks in advance!