Great news and congratulations on your Bottlehead build. Fantastic amp and from what you say, I should phone them up and get one myself. I used to have the same amp years ago and I should try it out again. Would be fun making a fancy base for it.
The 6's love the 2A3's and the Bottlehead puts out good power. Please try out the new tubes and it will get better and better.
Many thanks for your kind words and great post I appreciate it a lot,