I added a behind the saddle bottle set up so I don't have to ration anymore. I get to try it out tomorrow.
A bottle launcher? I couldn't use one because I frequently hang my butt off the back of the saddle. I tried a handle bar bag for extra bottles but didn't like the added weight on the bar, plus the loss of hand position with the bag I have. I tried carrying a bottle in my pocket but it's annoying even when empty. To me, the best compromise if I need extra water is a 70 oz Camelbak. I don't use it often these days and many roadies scoff but it works.