The Contact Security tires are designed for use in factories... that may ave something to do with your crappy wear.

The Travel Contacts are a different animal. I use them on all of my bikes and have had 1 flat tire in the last year. The also roll great and wear has been negligible on my most-used bike - over 3k miles on 700 x 37's and they still look new. I run 26 x 1.75's on my other 2 bikes and they roll like 700's. The 1.75's actually measure 1.6 on 27mm rims.

Best tires ever.