Best 300B SET


Looking for 300B SET (one output tube per channel) to pair with Shindo masseto pre amp. How would you compare Wavac EC300B, Shindo WE300B, Yamamoto A-09S and Verdier 300B?

What is your take on the best cost no object 300B SET?
edoit
WAVAC, Mastersound, VIVA, Line magnetic all make wonderful 300b amplifiers of extreme quality.
Johnk/Sounds-real....if you've heard the LM mono 300B amps, I would LOVE to hear your impressions...

I run an AirTight ATM300 8W SET (WE300B newer production, Genalex GL B749 drop ins for 12AU7s, RCA red label, grey plate 12BH7s & 1940s JAN RCA black plate 5U4G) and am saving for the LM 755i's...
Asa,
The LM755 field coil speaker with your Air Tight 300b amplifier would seem to be a potentially superb combination.