Hello, new here, loving all the info and and site. Thanks to Tony's video/write up I was able to successfully drop the rear bags after a few tries. I had a question about that though. I noticed now that the bags seem to deflate after a little (truck turned off) but come back up once the compressor kicks back on. Throughout all the reading I did I didn't seem to see if that was normal or not. Any help would be appreciated. Thanks!