Thanks again grk.
It's a real shame I can't hear the super nines before I purchase the Joseph speakers (which I love anyway). I told my local Devore dealer to let me know if he ever gets a pair of Super 9s in to audition. I auditioned the0/93 and 0/96 and ultimately liked the 0/96 better, but their width (and cost) create some issues in my room. A slim version having similar attributes, like the super 9, could be just the ticket. However, they are way too expensive to just buy without hearing them (in my case).
Out of curiosity, how close do you listen to them? I found the O series to require at least 8 foot distance in order to sound their best - to sound coherent, focused, with "snap" and "air" (too close and they start to sound a bit unfocused and glazed over). I know Devore recommends at least an 8 foot listener distance for the 0 series, presumably for this reason, and I've wondered if this is a consequence of the particular design of the O series, or if there is something about how John D designs al his speakers (e.g. crossovers/drivers etc), which necessitates that distance for them to cohere.