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I have my fuel calibration at +5% and it seems to be reasonably accurate. I don't use cutoff (set at 0) because I can't say for sure that my car does this. My TPS reads from 19 at idle to 92 at WOT. Right now my main display shows:
TPS MPG
LOD TRP (that's my abbreviation for trip gas mileage)
The bottom left spot is kind of a wild card. I put the horsepower gauge there often, since it is a good all around indicator of how hard the engine is really working. I just put load back there to experiment with what load when accelerating will produce the best FE. Sometimes I put coolant temp there, like when I am trying to figure out how big a hole I need in my grill block for adequate cooling, since the stock temp gauge is useless for this. Or sometimes I put IAT in there to see how much it deviates from ambient temperature. I have some fun manufacturer specific X-gauges for my Escort too: trans fluid temperature, torque converter slip ratio, fuel pulse width, gear ratio, torque. Mostly curiosities, although knowing what the converter is doing can be helpful.
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