H2, I do not run a compressor system at this time. At first I was thinking I would really to but now I think I am gonna hold off. Currently I am just running them independantly which I hear is better anyways. The fillers are on the pinch seam of the bed in the wheelwells. I didn't feel like putting them on the bumper or the rear of the truck as there is just no room between my bed and the trailer.
If I were to run a compressor I would want one that keeps the bags seperated. I guess I am just unsure if I want more crap on my truck that could potentially break.