I'm getting ready to change tires and I'll be moving from All Condition Armadillos to either Continental 4000s ot Michelien Krylion Carbons. The Micheliens are about 15 grams lighter and the Contis are 100 grams lighter for each tire. Since 100 grams is "only" about 3 1/2 ounces, is that really that big a deal. I'm a recreational/enthusiast rider and don't race. Your opinions and experiences please.