I agree. Anything you perceive as better about the xm4 is just preference. In that case you just have to try stuff out until you find what you like

never had an issue w/ 2.5mm putting iems in my pocket w/ the btr3k. had an animal ruin my 2.5mm balanced cable for my planars and ended up going w/ periapt's 4.4mm termination since the q3 has it, but don't see a huge issue with it. I've killed way more 3.5mm jacks than 2.5mm