Nuff Said
It is not approval that is required to argue this position. I also submit that to operate a flying machine outside of its certified envelope is arrogance and with no malice intended, stupid. Like many on this site I have many years of rotary wing flight experience in many machines, including flight test and certification work. This knowledge and experience has provided me with a solid understanding of the design and certification of rotary wing aircraft. The only way that the longevity and safety of a vehicle can be assured is to operate and maintain it within the guide lines out lined in the appropriate manuals. To do otherwise is not smart. I can state this with confidence as one that signs my name to the posts on this site.