More info...
TCC apply/release:
The TCC Apply and Release curves show a large step to 256 MPH at around 80% TPS; this is to have the TCC released above 80% throttle to prevent the TCC friction surface from burning out (there's only one surface); too much torque will overcome the TCC and make it slip.
WOT MPH and WOT RPM upshift:
Keep in mind that WOT upshift requires that both WOT MPH and WOT RPM be met; set the WOT RPM to what you want to shift at (maybe subtract 200 RPM from it), calculate the MPH this corresponds to, and subtract say 10 MPH from this, and set this as the WOT MPH; this allows the MPH condition to be met first, and then the RPM condition triggers upshift; log data and fine tune.
Line pressure and PCS pressure:
The PCS controls "Torque Signal" pressure which acts on the end of the Boost Valve which, via a spring, assists the Pressure Regulator valve; so while PCS pressure may range upto 95 psi, line pressure may range upto 220-250 psi (varies with different model of 4L60E and with shift kit); so if you have a shift kit installed, use Scan Tool Bi-Dir mode to command PCS current and observe line pressure tap using pressure gauge (remember as PCS current goes down, PCS pressure goes up); this gives you an idea of how line pressure ranges, and you can modify the Shift Pressure tables accordingly.
I do aplogize that I did not include the table id numbers, but soon I will do this and clean up the document.
Edit: Fixed some typos
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