Update: As I said in my original post, I was lucky to have another amp that I'm really enjoying. So I'm just treating this as a source of humor.
Went down to the mailroom to pick up some tubes that had arrived for my current amp and guess who drove up--the DHL driver.
I told him customer service said the package would be there between 1900 and 2000 and there was nothing could be done to change it. He basicly said the customer service agents are idiots and if drivers didn't resolve these situations themselves the company would go bankrupt. He was a pretty dang nice guy.
So I got my amp, listened to it for an hour, and I'm back to my current amp with the new tubes. Both are excellent but these new tubes sound very sweet. New amp sounds great too. I'll work on getting more hours on the new amp over the weekend.
Jerry