Great stuff! I was hearing those shows on shortwave's WWCR from Nashville around 1993, while in Texas I think, so that would have been with an unaided DX-440 receiver from Radio Shack, no external antenna.
I don't know if I got a Tempered Steel tape or not, I had a P-15 station down there, but can't recall playing the really hard stuff on the air at that time, on Canine 103.
Good run-down on the history of Tempered Steel, and with all the energy and drive that Dale had, I wonder what happened to him and the show? He might have disappeared into the internet, after finding after finding a place for his shows there pretty Early, pun intended.
As for music and on-air talent getting stale after 2000, I think it's that now everyone can broadcast, so we don't always get the cream of the crop, there's lots of average out there now.
Boomer