Wow I always love the look of new lines. I worked in a rink for many years and changed many of zamboni blades and had many of late nights working on a good sheet of ice with friends after a long pick up game of hockey. not to mention the old crane compressors running at the rink and the HDB zamboni we had. my favorit Zam was the old 1962 3 speed JR we had as a back up it never let us down.