i have kings on my climbing/descent road bike (a strengthened and lightened roubaix). i think the extra pawls make for smooth downshift going uphill. this bike will be pulling a trailer up gnarley forest service roads. the extra pawls alone may be worth it. for touring, these roads, while not as bad as technical MTB trails, get PRETTY bad, expecially considering you are pulling a trailer. OTOH, these roads dont have TRAFFIC or PEOPLE on them!!!!

thanks for the replies.