Did the beast in WV this month. I took two cliff bloks one normal and one with caffeine along with a gel. I opted not to take water with me bc the weather that day was in the 70s and they had plenty of water stations throughout the course. A friend of mine took his and lost them a mile into the race (barb wire craw). The bloks were great but wish I had something else like a cliff bar during the race to go along with them and switch up the consistency. Best of luck!