We are renting a 42' tiffin Allegro Bus and it has a tag axle. Anything special I need to know about driving with one I drove a truck for a few years so I'm familiar with driving a large vehicle but...
My coach has a switch that will release the pressure on the tag when needed. However, I understand that if the switch is in "auto", the pressure will be release at any time the coach is going less than 8 mph and re-pressurize the tag when over 8mph. Not sure how true this is, so I always use the switch whenever I'm making a turn in 1st gear.