wwc, good luck on getting your shackle fixed without causing delay in your trip. Hope your trip through ATL is completely uneventful. I understand your concerns as I have towed through and driven through/around numerous times, and I still get anxious. My DD & SIL lived there for a few years, and I always had them help me make routing/timing decisions.
for those who posted on my sidetrack question. thanks.. I think I will wait and leave Columbus around 6 or later. should get me to 285/75 on Northside after most of rush hour.