I've just finished up about an hour of listening to the set. All of what follows is just preliminary, of course and some changes will be made.
First of all, this is a high-energy speaker. Very fast and punchy bass. Although it will not give my IMF's anything to worry about in the extension department, the USP's (Untitled Speaker Project) do possess impact that I sometimes wish they had.
The midrange is very detailed, and along with the highs, there is exceptional imaging capability. Both the highs and mids are more forward than I am used to, but I found I acclimated to it, and when I reconnected the IMF's I conversely found the midrange to be slightly recessed. Still, I think I may rework the crossover a little to pad down the tweeter a bit (or install an L-Pad).
The drivers integrated much more smoothly than I had anticipated given the haphazard driver selection and arrangement.
I think, Bob, you may be pretty well pleased when you make it back up tomorrow.