No most people went with that. It is an awesome sounding tube. The TTVj Millet 307A which is also a very great sounding amp uses it as well.
The only issue is that the supply is dwindling and it is not being produced by anyone anymore. As long as you stock up though you will be fine. Worst case you can always get it converted to use one of the other tube types.
I do not have a ship date but I estimate between 3-6 weeks. If all goes well then 3 weeks is possible in the best case scenario. If he decides two tweak a little bit then of course time will change proportionally.
Personally sooner the better, but as long as its before CanJam09 then I am satisfied. I think it depends largely on whether or not he makes some cosmetic changes and if he is satisfied with the sound of the completed product.
Last I heard he is not going to strip and reanodize the top plates with a different font, but he does need to have Balancing Act etched onto it... I don't know how long this takes but I am guessing this can be done while some of it is being assembled and should not take that long. If that's the case then the only real wild card is if he is satisfied with the final sound...
Craig is a perfectionist so all bets are off if even the slightest thing is off with the sound. I think I am at the most risk for tweaking since I am going with an unknown tube the AD1. The 307A he has heard extensively so unless somehow his vastly improved and now tube rectified with dual regulation power supply sounds worse than his solid state bench power supply (Very unlikely) then I think 307A duders are safe. The 300B guys are safe as well as that is also a tube he is well familiar with
Of course this is all conjecture and who knows... fingers crossed though