Hey Fred, where did you get your electric york at? I have been wanting to get one of the under hood engine driven ones, but from what you said it sounds like they are pretty troublesome. I don't have an AC system in my Jeep and that's where I would put the udner hood york.
I got my little compressor in case of a flat, to compliment my tire plug kit. <img src="/forums/images/graemlins/kewl.gif" alt="" />

By the way, most of the trails we run, even though no extreme in any measure...They are narrow..between lots of trees, and have been rutted out by 35+ inch tires. There are spots where we can just barely creep by on the edge of the ruts, and sometimes you can't avoid falling into them. So in those cases airing down would not be all that practical. And for now I'm too young to worry about a jarring ride. <img src="/forums/images/graemlins/wink.gif" alt="" />