I haven't read the whole thread, neither the one that was recently deleted. But you can see that Kevn has a lifetime interest in the tube audio hobby. If you live in SoCal, you owe it to yourself to go visit and hear for yourself; I'd recommend a call to let him know you are coming. If you don't live near enough, give him a call. You can get his take on what's going on and then be in a better position to make a purchase.
I have never bought anything from Kevin, but I've been in his store years ago. It is a neat place, especially seeing his vintage tube gear; it is one way to show off his "love" as he says for the hobby.
Best of luck OP.