I've done some touring in Ok reed, from the mountains to the plains. On nice, smooth highways. Ok is a great place to tour. Lots of state parks. My first foray there was around Roman Nose not far from Perkins.
I swore off touring in Texas due to the pervasive use of rough aggregate. In spite of my resolution, I find myself headed for Big Bend again in January, the allure of the area prevailing over TDOT.