You bought them Ulti. IIRC, you are the trainman in the London underground that needed good isolation? Maybe I'm wrong? I have not changed tips and wear them straight down as well. I quoted above that the clarity does suffer a bit due to the delicious bass, though.
Welcome to the thumpin' bass club sir...
Yup, got them for 18.50GBP, nowhere near as much of a bargain as you guys, I'll probably sell these to a friend who's a basshead. I couldn't get a good fit with the DUNU Tridents I mentioned earlier and I've returned them to Frogbeats for a full refund, very friendly customer service there!
I've now got the RE0s now and with the shallow triple flange from the Xears XSR330PRO/Xi200PRO, it seems to isolate the best amongst the earphones I have and I love the clarity. I thought they would be too neutral or analytical for my taste but it seems I quite like them.
Now this is a thread about the HA-FX1X so I won't say anymore about my other IEMs.
How long have you burnt in your HA-FX1X? I find these more muddy than the CX300s from memory (I haven't actively compared them). But this is with less than 5 hours of burn in time and bassy IEMs tend to burn in to having less bass and more clarity from what I recall.