Hey gojimgo!
I used probably 40% non caf Maurten powder, 20% caf, 20% non caf tailwind, and 20% non caf Maurten gel. Took Maurten bicarb before. Probably about 350 calories per hour until about hour 7 and then I got lazy and probably did 100-200 per hour.
Let me know if you have more questions!
jack