"Willy-nilly" huh Tom? Hehehehe. Thanks fellas. I will stay with tubes and technique. Hopefully I will not have to do a "field" repair 30 miles from help, but I imagine it is inevitable so practice the technique and remember that it is a 650, not the 250 my mind thinks it is until I go down and I have to pick up the heavy beast. I am on my second set of tires with just over 10,000 miles since last April, I ran a set for about 2,000 then went more aggressive , Shinko 705 to 700, now using 804,805 and like them. All that was said to ask what is the average mileage you guys get on a set of tires? I am looking forward to a trip in the next couple of months Tom. Hope you've been keeping up on your dominoes game mister.