It should be noted that alot of time when I'm doing the "bouy" races- I'm on the water 4 hours in the morning and 3 to 4 in the afternoon. Thus, I will like to see the rules to allow these camel back's to be used for either distance or bouy racing. Once again- if some buddy is going to have a protest to 70 oz of DRINKING water ( about 3 to 4 pounds).- which in turn will slow down my boat. Thus, I'm sorry but those people are getting a little to serious. I will always put good health practices like hydration in 90 degree weather- before the racing rules. In fact, I bet there has to be a rule in there some where about each person being in a good and healthy condition.