PIANOTUNA: I push "resume"...but not when the overdrive cuts out on a hill. "Overdrive" was never meant to pull 10 tons plus a "toad" up a hill steep enough that would turn it off. To me...that = damage: then failure. And, stepping on the gas when the OD cuts out THIS YEAR is cheaper than a $4000 replacement tranny next year. Overdrive was designed to do one thing: keep the rpm's down...for better mpg. With a car you can see it. With a motorhome, not so much.
My opinion.
When I'm running a reasonably flat highway, cc at, say 65. Pull out to pass a slower car or truck, I have to gather speed to do it....then after a good distance, I pull back in lane and that is when I push "resume".