Been swapping tips again, and the olives + white hard tips tie for the best SQ for me.
Olives tilt the balance towards warmth, rounding the lower midrange a bit. Comfy.
White tips tilt it towards brightness, with more air and more forward vocals.
It's not a drastic change, but the differences are perceptible. I think I'll be using the white ones for a different flavor. I'm still wowed at how spacious this thing can sound (for an IEM).

But a little gripe: the complys are discoloring even though I used them just for testing when I first got them.