I've always been a fan of Contis but have had my share of flats with UltraGatorSkin tires. They have Kevlar-belted sidewalls only. I was wondering if anyone had experience with Specialized Armadillos or the new Panaracer "Protex" - belted RiBMo tire. Does the Kevlar in the Armadillos cover the tire bead-to-bead? Panaracer says Protex is 4X tougher than Kevlar.