The six speed will not give the performance of the 5 speed unless you shifted manually.

In economy mode which is the default on my coach it will not downshift until all hope of accelerating uphill is lost on the six speed.

In performance mode it will downshift sooner, and upshift later, but unlike the 5 speed it will not hang in gear as long as the 5 speed did unless you are manually controlling the gear you are in.

The five speed responded to your foot. Keep the accelerator planted on the floor and the 5 speed would hang right in gear until it hit max revs of 2150 and it would downshift if it would not over rev the engine if you mashed the throttle. Shifts were not as smooth, but neither are they on the 6 speed in performance mode.