I have been using a Topeak digital smart gauge to check air pressure in my tires. It sucks it is hard to use, you must have it perfectly lined up on the valve, it loses air when you take it off and sometimes it gets stuck on the valve. Do I need to get a regular tire pump, I am using my air compressor know to fill my tires. Does any body know of a better gauge, our do I need to get a tire pump, recemendations please. Last thing lots of differnt inertubes out there, any better then others. Last but not least is there a spell check anywhere on here?.