Got The Beast back from the tranny shop yesterday...
 

Well, I got the truck back. New TC installed, and flushed the tranny with synthetic ATF. The pedal vibration is almost completely gone. The guy thinks it may be a motor mount causing the remainder of the vibration, but he has assured me that there are no problems with the transmission in lockup mode anymore. With the synthetic ATF it shifts a lot smoother too. We'll see if I get any more mileage out of it.

-Jay

That is good. No way it couldn't improve, but it will be interesting to see how much improvement you do get.