I have the Focal 926. I have had Sonus Faber Senetto III and a really nice pair of Quad S-5 in my room and A/B them vs the 926 and neither were able to knock the 926 from their perch. Although the Quad S-5 came really close with their beautiful imaging. LD let me audition the SF cause I bought the Focals from them. I had to buy the Quads used but ran them in my living room for months before I sold them. sold them for couple hundred $ less than what I paid but it was worth it to have them in the house. Few years later I ask the buyer if he would sell them back and he said NO!
I would advise getting whatever you are considering in your room and run them strait up against the 926.
And I also think the 926 flax drivers loosen up after they have been running for some time so let them warm up when you compare.
Instead of rolling tubes, I say roll speakers!