I've got new Mickey Thompson 30's on Taylor Wheels and want to keep them in like new condition for a long time to come. Is airing them down the way to go? I am going to run nitrogen next year also. I have them wrapped up like you do. On the front, I am running my spare set for my Funny Car from 1972 and they have never been mounted. I pulled them out of the bags, inspected them carefully, absolutely no cracks and ran them up to around 150 and they are still like new. Someone told me to leave the air in them, and build a tire/wheel holder with a piece of tubing that will keep them off the ground for proper maintenance. I've got my Funny Car fronts off the rims, because I had my rims powdercoated, so I will leave them off until next year, but I am concerned about making sure the rears are preserved for years to come. Any comments would be welcomed.