Thanks a lot. That helps.
I find the EPH-100 fairly comfortable, but lacking in isolation. Maybe I have wide ear canals. I actually like the bass on them too.
For my next IEM, I'm looking for something that isolates fairly well since I'm planning on using them on a long flight. Since you said kc06a don't isolate well, I think I'll scratch them off my list.
I'm almost convinced that t1e will be my next. Might ponder over it for a few more hours before I place the order.
I hope you decide for them. Can't go wrong imho