Thanks for ths suggestions, all.
Bwhite, I am currently using two Bel Canto EVO 200.2's in a mono block configuration. Lots of power, and I do like the sound, but can't help wondering if I might get better transparency and more "dimension" with the Gamut, Plinius, Berning, Pass, or something else. Like every other person in the hobby, I want it all--solid state's muscle and tube's finesse. The Bel Cantos are OK, but are they the weak link in my system? I don't know, but I suspect it. I admit I have wondered the same thing about the Supratek as you, but I guess I'll never know whether different amps make much of difference in my own system until I try. I wonder why there isn't more feedback on Mick's amps? Maybe he is so busy trying to fill backorders he doesn't have time for anything else, but it would be great to know people's experiences with those.
BTW, I am using a Dynavecter 20XH cartridge with the Spacedeck. It's a bargain and a good match. Thinking about a Shelter, though. Obviously, I will be much better when this upgrade fever breaks. After 15 years away from analog, it has been a blast getting back into it. Of course, the sound is amazing, and it is fun chasing auctions on eBay and finding deals in used record bins. Just yesterday, I won an auction for a near-mint Miles Davis LP for $1.50. I felt like a Boy Scout earning a merit badge. It'll be even more fun when I get it, clean it, and cue it up.
And people wonder why we're addicted to this hobby...
Keep those suggestions coming, folks. I appreciate your recommendations. Leaning toward the Plinius, but still mulling it over and checking the classifieds approximately every fifteen minutes.
best regards to all.