Steep grades towing to Bristol from Florida?

[jmcarter]

The long grade from the NC state line up to Asheville on I-26 is about like Monteagle but the ambient temps will be much lower of course. If you're really worried you can run up I-75 and pick 40 at Knoxville then straight up I-81, no really long grades that way. Just be aware that East TN is very hilly so you'll have some short ~4% grades to deal with.