i ve been reading and re-reading all 4 pages of that article.
it seems to be 2 different schemes. seems as if some people use a potentiometer to boost tps signal while others use the pot as a replacement for the tps.
it seems there is not any automatic kickdown with either scheme.
i cant have that because of the possibility of less intelligent people piloting this truck and may not understand or remember to turn the pot or dimmer switch to kick down.
so it seems that a pot allows a lot more tunability for my exact issue, but i think the psi switch may still have its place as a automatic kick down, lets say around 35-40mph.
when oil pressure drops in the tranny, it cuts ground signal and forces a down shift at the 35-40mph range.
on upshifts, the switch still closes at 35-40 but since it would be wired in series with the pcm wires, upshift would occur until the pot and pcm tells it to.
thats my thoughts on the issue
the pot works great if you re the only one driving your truck, but put a gf, wife, or a friend who is semi clueless behind the wheel and best case scenario is they are mad and blame the truck, worst case scenario is mechanical damage.