Room acoustics will play the biggest factor in anything. This means positioning of speakers is extremely critical. What I would do is start very close to the speakers (i.e. 2-4ft away). Then carefully move back in steps until you find that sweet area that sounds best to you. It may be at 4ft, it may be at 6ft, 8ft, 12ft, 16ft, etc. Everyone's listening experience is different and fully depends on personal preference. When you find the place/s you enjoy the most, then critically deal with speaker tilting (i.e. toe in/out, keep straight, etc.), and be sure they are aligned properly from left to right given most may seem to have what looks like a perfect rectangular shaped room is actually slanted and requires that the speakers be aligned so that each speaker is reaching your ear at the same time. It may be helpful if you prefer a few different listening areas to try this aligning technique for each of these different listening areas. It is definitely helpful to know what others experience as the optimal distance and alignment, etc. but it really has all to do with the room you have and the care you take in treating the room and "critically" aligning the speakers as any truly reference type speaker with excellent electronics will be highly sensitive to placement/alignment/etc.
Great speakers you have, by the way:)...Maybe the future will bring my Ronins together for a test against them...hmmmm:)