Another tow/haul question

I have a Gasser and use tow haul, matter of fact I really like my TH feature on my truck. It works, but when I get into rolling hills it does shift down and up often, so I bump it out of CC until it flattens out. We were into some head winds earlier this year, had it in CC and were rolling about 70 mph, a very slight incline and head winds and the truck dropped down a few gears and really revved,, it was at close to 6K rpm when I bumped it out of CC and took over! CC was doing its job so was TH, I was uncomfortable with the high rpm.