Thanks for the link. It was interesting but the author gave us a premise and a conclusion but that was it. Where was the testing and how did they come to the conclusion? It really seemed to be lacking. I know this is about touring tires but I installed some Tufo high pressure tires last year on my road bike and had them up to 175lbs. It made the bike feel like I had just installed a new set of high end wheels and felt so much faster but of course the ride was harsher.

+1 on the Travel Contacts. A little heavy but a good compromise and I never flatted with them after several years and two tours. If you can afford it, you couldn't do any better than Schwalbe Extremes, Supremes or Duremes. More dirt and less road=2.0 (all of them). More road and less dirt=1.6 (Supremes).