I have a jeep and understand the value of dropping tire pressure when in sand and so forth. I have found this also helps very much on the TW. When that front tire is aired up to street pressures it's as squirlly as heck in the sand, even scary. But when its aired down much more controllable. Now i still have the stock tire on and i know it sucks and i plan on getting something different soon. But i still like the option to air down the pressure off road. My question is what do you guys use to air your tires back up when you go back on road. I've seen a few different options like the little CO2 thingy, and seen a couple of you have some kind of little compressor you carry with you. So let me here the good, the bad and the ugly about what you've used.