George, I know you tried the Stratos, and preffered some other amps, but have you ever tried any of the "higher up the line" amps from Klaus?
A pair of Symphonic Line RG4's are killer, and any of the SL Kraft amps would compete very well against the amps mentioned.
Klaus may be able to make a pretty good deal, and I'm sure would offer a demo period.
In fact, I think he would welcome a comparison of the Krafts against about any amps you could find.