I have been listening to the Sonus Faber Lumina III for the last couple of weeks and time had come to put the SBLs back in situ. I have a set of the Gaias that I had used with my Focal 1008be and so decided to fit them; having lived with the SBLs as nature, or at least as naim, had intended for about a year.
The effect was entirely positive. As with the Focals the bass is further controlled and the soundfield comes a bit more into focus.
I admit that I wondered whether this would be a waste of time, for me the answer was no.