Kiwi, Ah, I got your attention, did I? It is a most unusual, and excellent performing set up! I like trying alternative methods as they sometimes yield wonderful results.
If the two units are within three feet or so of each other you will have no issues with running them in lockstep via the remote control. It is uncanny how perfectly the two work in synchony, almost like there is a physical link between them.
Other good aspects include the availability of running one stereo if some other component in a diffeent system craps out. You also have a second remote handy in case the first dies. And the fantastic looks! (If I said that before, it's worth repeating!) :)
I also use the Pathi with Legacy Audio Focus HD's, which are 96dB sensitivity, and that also is a fantastic sounding combo.
I would love it if more manufacturers produced integrateds which were switchable to mono block. Since this integrated is designed well enough to be run as a mono block amp the results are impressive. From my experience the benefit of losing an additonal component and set of IC's allows for this more modest integrated to perform at a higher level than expected. In my opinion it is the best of separates and integrateds, with virtually no downside. You even get the potential to tube roll at a very minimal cost!