Thanks for the update. This sort of follow up is very helpful. The slide issue - lets hope it's not a dreaded problem and more of an adjustement. That happened on on of my coaches a while ago and it was a simple adjustment. The rear tire, this just happened to me. Valve extensions were the cuplprit. took it in to a reputable truck tire dealer and they confirmed. Further they said not to replace them as no matter what type or brand, they will eventually leak. So I bought a good air up extension with the 180 deg chuck instead.