Oklahoma City is the only major traffic problem area on the alternative Interstate route. (west side going in through Fort Worth pretty easy).
Considering mostly four lane interstate, time wise may not be too far apart when compared to your other planned route, even though it is longer.
The Mad Norsky, Doll, Logan and Rocky
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2019 Northern Lite 10-2 EX CD LE Wet Bath
RV'ing since 1991
I took the road less traveled .....Now I'm Lost!