Forgot I had bookmarked this thread! [MENTION=35181]Reynolds[/MENTION], I never had a flat while using the original CSTs and have long since changed them with Maxxis Detonators which are by far the best bicycle tires I've ever had (dry and wet traction and resistance wise), but are absolutely the worst tires concerning punctures with an average of 1-2 a month! I know it's a PITA to patch tubes, but IMHO the tradeoff of excellent handling is worth the inconvinience.