Hi! One bit of advice I should follow more myself - always bring more than you plan on needing. You can get lost and stuck getting somewhere the long hilly way by accident( who, Me?!!), or be riding with or come across someone who is "bonking" Most all of the gels are good, I've heard that you should avoid using the extra sodium gels in combination with sports drinks like cytomax, etc which also have sodium. So if I eat an added sodium gel, I'll wash it down with water, and drink the cytomax later. I like to count calories when something works(for example, my favorite 70 mile hilly ride is a 1000 calorie ride for me) Before I started doing this, packing all the gels, organic toaster pastries,sports drinks, and sports bars seemed like too much food, and I would run out of gas having brought too little. Eat and drink to finish your ride strong! Tokie