Leave it on?
Does this mean that if I lose 1.5 inches MAP with full carb heat applied and I fly around at 2000ft above sea level most of the time that I could leave the full carb heat on permanently and just pull 1.5 extra inches so long as I don't run out of throttle which I know here in Scotland at these altitudes I won't? Why bother with the on and off and continually checking if I'm reading this correctly?