Robbie, it is a reasonable question that I was pondering when I had my 89 P4 asI had had one previously. Then, on the way home one afternoon, I pulled into the side of the lane to let a tractor with hay bales pass by as he was coming towards me. His load caught the lower branch of an oak which brought the top part of the load down onto me. Amazingly there was no damage although I have no idea how I got away with it. Anyway my wife solved the dilemma for me .
