I have gained access to a nitrogen tank and was thinking of trying it in my tires. Does anyone have any idea what to do with pressures? With regular air I was running around 28psi cold, maxing at around 37 or 38. I know nitrogen doesn't gain the pressure as much as compressed atmosphere, but should I start my pressures higher? I mostly like the idea of not having to plug a compressor in at the track or having to go keep filling an air tank, not to mention being able to run other air tools off the tank. Any input would be great.