I have an old, loud tire inflation air compressor from Sears that has a pressure gauge with a dial large enough to be readable to the nearest pound. When I look at the current generation of not-so-loud tire inflation equipment, the gauges all have small dials. It's hard to read them even to the nearest 2 pounds. Also when I look at "tire inflation kits" for general purpose air compressors, they also ofter gauges with small dials. What explains this trend? Is it best just to over inflate the tires and read the pressure with a stick type gauge as you gradually let air out?