exactly, i do the same, keep it at 2, but Aliusman's words confused me because he said "minimal air passes through the refrigerant" and i was thinking how come minimal air will pass... it's the time, not the quantity.
by the way, since we are already on the topic, i have another question .. my car's radiator fan (and i am assuming compressor too) only trips on blower fan speed 1, whenever i keep it at 2, even if the car is idling for 10 minutes or more the fan never stops... is it normal ?