"I demoed ML's before buying the B&W's, but couldn't avoid hearing the disconnect between a dynamic woofer and electrostic panels."
Doug this is an interesting topic which probably has nothing to do with this thread.
In making the panel of it's hybrids so small ML creates its own problem. Bass requires big panels a la Soundlab. The solution is to cross over at around 250hz. There is a significant amount of energy in that area. This makes speakers like the Summit(270hz) a true hybrid. It would then be extremely difficult to make a dynamic bass driver that could accomodate an electrostatic or ribbon for that matter.
My CLS is truly operating over its full range. The janis is cutting in at 100hz. In this the Janis is not acting as a bass driver(woofer) but as a true sub. Thus I don't hear any disconnect. When properly adjusted it calls no attention to itself.
I for one would like to see Martin Logan build a two box system with the CLS and a line array of say 8" woofers crossing over at about 100hz. It would be a killer.
P.S. I whole heartedly share your opinion on power supply. I think it has changed my opinion about the tubes ability to handle the leading edge.