Advice to cyclists is always to "drink before you are thirsty" because thirst is a delayed reaction, and if you are thirsty you are already on the way to dehydration. Apparently I should be drinking a 22-33oz per hour. Being a conscientious type, I follow this advice, and then end up needing to flush my buffers every hour or so. This is as it should be according to the Hazon ride book, but not always convenient on the roads of Newton.
Hmm... was this really a VC:VC posting?