woo audio W5 Lite Vs. TTVJ -307

Hi Goners'

Posted under "amps" but i hope to snag some "headphone and techies" too...:)
would like to know if anyone has heard both or either units used balanced or single ended and what your conclusions were...
yes i know one looks like a Ferrari and the other an Edsel but behind the mask, which one and why please.

I have several top headphones, all wired to different terminations so i might know which one you used to audition these.

That said, one is $6000.00 [yikes] and the other ,with full "in house" mods and upgraded tubes is about $1000.00 less...

Help please!

Regards to all!