I don't like using tow/haul for several reasons so yeah, I tow in OD for the most part. If I hit a hill I let the computer downshift unless I want more speed. I use t/h in the mountains to engage the engine braking, but that's about it.
Jayco Designer 30 RKS Medallion pkg, Trail Air pin
'05 F350 6.0 PSD CC 4x4 DRW LB B&W Companion, Edge Insight
“Certainly, travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in the ideas of living." Miriam Beard