I have always had this crazy thought about 7 and 8 ft rotary cutters. A 7 ft has 1 simple gearbox to maintain and by adding 1 ft cutting width, you inherit 2 more gearboxes and 2 more blades and cross connectors to maintain in addition to extra cost. Is it worth it? Don't get me wrong, we stock and sell both models and the customer is always right. As a retired Machinest, I guess I may focus too much on things like this?? Ken Sweet