Prowler 

+1. Park TB-2. First day of my Erie Canal tour, last summer, near the end of the day, I hit something which slashed the rear tire and tube, about a 1” cut. I found a nice shady spot to remove all the baggage and the rear wheel. Booted, tubed, reinflated and reinstalled. Over the next 24 hours of finding another tire and riding east on the unpaved tow path to my campground for the night, that tire/boot held up fine for 60 miles, fully loaded. After making camp I swapped out the tire. The boot was very durable and saved the trip.