Since I am new to the Jeep world I have a question regarding running in sand. Actually I have several questions. First, for beach running I know you air down your tires. How much do you air down? Is it dependent on whether the sand is packed or loose? Second, what setting on the transmission should I use? I am thinking four wheel locked (not low) and use the shifter feature. Is this correct? If not, please enlighten me. I will be wintering in Arizona and want to get my overlanding (ok, mild class 2.0 to 2.5) on. I eventually know I will be needing some add on's. What is the first thing I should look into modding? Thanks for the help.