I've got my Tour de Cure imperial century coming up this weekend, with rest stops available roughly every 10-15 miles. It's my first century, but I've been training for this ride for several months. So far, all the longer rides I've gone on I've carried a 100-oz. Camelbak full of water, a couple snacks, a rain poncho, etc., and I go through 100 oz. of water in about 60 miles (as well as a sports drink bottle or two). I know most folks say not to carry the Camelbak on the actual century since it has support, but I've been thinking that my training has involved me sipping regularly from the Camelbak, and carrying the food/snacks that I'm most comfortable with. I'm worried that if I leave the Camelbak at home, I could either accidentally drink more or less from my water bottles than I do from the Camelbak, or get stuck with food at the rest stops I'm not familiar with / don't like.
Should have thought of this a while ago, but I guess my question is -- should I ride the century like I've trained (with the Camelbak), or take a bit of a risk as far as food/hydration go with the benefit of not having to carry the backpack 100 miles? Is it possible the Camelbak has become my cycling version of a security blanket?