It continues to run well. In my quest to see where the knock bug exists, I tried various regimes to see what it does. I think I mentioned it climbs hills better with the S/C than the turbocharger under non downshift conditions. I was a bit surprised to find I could get 2-3psi of boost indicated if I roll pretty hard into the throttle with the trans in 4th gear and TCC locked. Lots of throttle but less than required to initiate a downshift. Something like rolling on the throttle at 60mph or so up to maybe 80mph, all the while showing a couple psi of positive pressure but never going over about 2400rpm. I figured only the turbocharger would do that, but I guess not. The best part was it showed no hint of knock.
In the trivia department, I have been looking at better ways to quantify what happens with the supercharger without beating things up and going to a dyno, which was never my purpose. I was looking for information regarding the Eaton M62 supercharger and found a few figures that maybe illustrate where and how it helps. This is a bone stock late M62 with the coated rotors but the coating is not pristine. Stock 3" pulley which gives about a 2.33:1 overdrive ratio for the supercharger. 5000 engine rpm is 11,677 S/C rpm, where it apparently requires 16hp if producing 5psi of pressure. Basic math calculates the engine requires 340cfm at 5000rpm @ 100% volumetric efficiency, something not close to reality in N/A form, which is more like 65%-75%VE. At that engine rpm, the S/C is capable of 380cfm, so I guess that is where the boost comes from. By definition, boost is actually resistance to flow, so I am sure it is possible to increase flow through other means and increase performance while indicated boost declines.