Hi Weez,
Right now, not much accomplished regarding cabinets for the amps. Still haven't had time to checked out some other tubes and possibly increase output power either.
Been testing a 3.5 way speaker that uses the Scanspeak 2545, a Seas W18, and dome for mids and highs. Extremely bright on both SS and my amps when they first arrived.
Since they are on loan, I cannot dig into the crossover, but I was able to cut down both domes and the sound is now excellent. The bass is pretty good, working on the room.
Takes so long to do and so little time. That is about it for now.