The TF10s really don't compare to be honest.... The mid-range on the TF10 is quite recessed, treble is brittle (sound hollow or empty), and bass wasn't very well controlled. But it was acceptable for me in universal form due to loosing partial seal. In custom form it was too much bass.
I'd say if you were going more for the TF10s approach on sound but in an IEM better in every way go for the Flat 4 Sui.