Can't disagree with you there Jack on the XZLs. They are tough and I too like the sizes. Taller and skinnier is good for me. I would not base my tire decision on one trail. I'd rather have good performance, be in my own cheap ass budget and sweat a bit if I do end up with tire failure on a nasty long trail like the Rubi, but likely that will never happen.
Cheers and good job running such a tough long trail.
I think that the correct answer on running a trail like that is about the same as running any tough trail.
but I'd call dual lockers, protection, recovery points and winch. But a wench might be more fun on such a long trail.