I have used Hammer Perpetuem as my only calories on the bike with great results. Its complex carbs are easy on the stomach and also allow you to mix the calorie concentration you need per bottle. It really simplifies things. I have gone to hammer gel (again, no simple sugars, better on the stomach) but have been intrigued by carbo pro premixed bottles. Niemsco, you have used this on the run as your main (only?) calorie source? I have planned to try this and am curious. Have you tried the carbo pro 1200 bottles?

Thanks. I plan to try fluid calories only for the whole race this season (with the exception of pretzels, etc). I have been doing fluid calories only on the bike. While the hammer gels are good on the stomach I have found that late in the run during an IM that the consistency make it very hard to get down.

Last months issue of Triathlete mag had listed a gel comapny I hadnt heard of before called eload. Their big thing is that they are nuetrel Ph so they are easy on the stomach. May want to give them a try.

I know this is a bit late but one thing I've been trying recently which is pretty easy to carry on the bike is prunes. 3 or 4 at a time are pretty easy to get down and dont have a negative impact when i start the runs. They also have a great balance of carbs and protein and relatively little fiber so not much waste. It might also be a mental thing but eating real food is also nice! I've heard raisins have a similar effect.