Ray, yes it is much slower. It does not slow down on the corners but changes speed on the grades just not as bad. I actually liked the low speed control for switching better before the TMCC since the start voltage was much lower on the AM board vs the ERR board. I think I am going to try a BlueRail board next. The BR boards look to have a bunch of features you can access in the app to fine tune and is sized for HO.