Yes, there has been some difficulty creep. A good portion of that is attributable to advancements in design and technology. I can tell you one thing for sure, it would be a bit more difficult to perform the current Masters sequence with my old Sequel than with the E-powered Integral I am flying now. The new stuff has more power, tracks better,rolls better, etc. I think much the same applies to the lower classes. The evolution of design and technology have made it that much easier.