Hi Ken, with regards to not dumping the air before settling in for the winter, next summer when you air up the coach, you may want to see how long it takes for the coach to air down. Most coaches air down, anywhere from 1 day to 2 weeks, (possibly your may be different than everyone elses) so if the Styrofoam was cut for the coach being aired up, it would be crushed when the air leaked down. That might cause other issues for you. Thus if you were expecting the coach to stay at ride height, you may consider putting the frame on jack stands at ride height, for the winter, instead of relying on the air bags/air system, to remain at ride height.