I need to offer a fairly significant wrinkle to the story. As I was going to swap in the new Lampi EML 45's yesterday after work, I found I had not switched the rear voltage setting from the 300B setting to the 101D/45 setting. This means our audition Saturday with the 101D, and my subsequent listening over the weekend, was all with the wrong setting. That explains why I seemed to notice the 101D's were burning brighter than I remembered, and they were definitely quite hot upon powering down the unit. I had to wait a couple minutes before I could handle the tubes bare-handed.
So, all those impressions about the 101D before are "colored" by this issue. It was amazing to me how much warmer the sound seemed over the weekend compared to past impressions of the 101D. This probably explains it. I need to put some hours on the 45's at the moment, but I will be putting the 101D's back in the system soon to check if the sound is more like my original impressions, or more like what Tom and I experienced last weekend.
Sorry for the mix-up and wrinkle in the impressions, guys.
The good news is the 45's are in the system, and with only a few hours on them last night, they're already showing great promise. Not the same character as the hot-rodded 101D's, but great in their own way.