Laurel, do you have cruise control? if you do when you hit the speed you want push the set speed button, that should hold you back. The only experience I have is on the road ways, not ice but if I have my cruise control set for 65 and I am going down a steep hill I stay pretty much at 65 mph. I would think it would work the same way if you hit set at 5 or 10 mph
When you are up to your butt in alligators, it is hard to remember your intent was to drain the swamp. Stay focused!