Should I use cruise control while towing a travel trailer

All the time if it's not raining. The computer is much better than I am at keeping the speed especially up and down the hills. Only thing I don't like is sometimes it will race up to 6th only to downshift right away to 5, then 4 or 3 before it figures it out.

Doesn't bother me letting that little 3.5 spin and spin. Doesn't have to much because of the 2 turbos. It's made to run.