Texas Hell Week dilemma

Texas Hell Week is coming up, and I have to decide which bike to bring. Supposedly there's chipseal and bumpy roads, plus the rides are pretty long, so normally I'd choose the steel Surly Pacer. It's heavy, but it served me well for Cycle Oregon. But it's also supposed to be hilly, so a heavy bike might not be the best. Plus I'm using this for training, so it might be a good idea to use a racing bike. And yet, there's no way Texas can be hillier than Cycle Oregon, and the Pacer worked well. But I can always throw some fat tires on the Basso. What to do?

Texas Hell Week bike dilemma
Cushy but heavy steel Surly Pacer for long days in the saddle
Light but stiff Basso for flying up hills
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