Well, after that 4 EST treble, I don't think I'll ever be able to go back to single DD (RIP FD1). As for all BA, sub-bass impact makes them very genre limited, except for se846, T800 and possibly Thie Voyager14.
In fact, probably no more BA either, unless I can find something as well fitting and isolating as iBasso AM05 but with better sub-bass. No rush with that though, since Trio is mostly satisfactory for commute.
Could you give some example of a track to test for "quick & punchy bass"? I don't have much experience with that.

Effortlessness and separation appears to be there, I need to do more comparisons to figure out if that intoxicating property is unique, and is it due to my preferences. Note that our preferences might differ a lot. I don't even ever listen to speed tracks, nothing heavier than classic metal and even that very selectively.
Interestingly, some of my best IEM purchases were "educated guess" blind buys. Roland was on its way to me when BGGAR hyped it. Fealess house is less safe to blind buy, because they experiment with tuning a lot. Sony Z5,A3 and N3 also had no reviews at the time. Though, I'm still mad at iBasso for defying the famous house sound with anemic AM05 failure of a bass. Well, at least fit and isolation were consistent...