Regarding the tube foam--actually, heat won't hurt it--it's rated to 65 degrees C continuous.
I suspect what's happening with the loose tubes is cold weather. During shipping, if it gets cold, the adhesive gets less effective, and might come unstuck. I've talked to the board house already and all production is now shipped with bent, strain-relieved tube leads to help eliminate the problem.
And--if you choose to re-stick them, don't worry about touching the tubes. They run at room temperature. The only parts that get hot are the large transistors for the Class AB output stage. We push the tubes down, hard, by hand, during production.
>.> I bought mine 2 days ago I hope it got this treatment
and I have the w1000x, on paper the match isn't ideal. 42ohms on my headphone 6.5out on the vali for about 1/6 ratio... not ideal but not horrific. Ppl seems to have success with GRados so its worth a shot. That and I'm looking into a 75ohm impedance adapter from a cable building buddy of mine... I trust his judgment as he's selling me his spar cable, as he owns 2
I assume my Thursday my Vali might be here, I got a shipment email I think the Friday I got it [maybe saturday] that it was shipped. With 3Day shipment from usps. ALthough mine may sit in the cold for a day depending on who's home to get the package
still great to hear you guys addressed the issue in house! Hopeing your solution works better than expected