hi, if not already identified by somebody else. you will not be factoring your breakfast into the calculations. try eating at least double portion of cereal washed down with a sugary drink.
try this on your last few long runs so that you get used to the bloating. N.B. eat 4 hours before ko. that will count for most of your crabs and then you merely top up after that. e.g. a sport drink one hour before ko, and gels/jelly babies every 45 minutes into your run.
hope this helps
Answers
I have only tried sis gels as that is the maje that they (manchester) will be giving out on the day and i wont be able to carry more than about 4 or 5 of my own.
Your figures must be wrong though. 13 gels is way too much. I'm a bit heavier and have a gel every 5 miles.
Are you discounting that you have energy stocks already on board?
She suggested I was actually taking on about 20g or carb per hour with my existing strategy of a few sugary snakes (Australian confectionery favourite) and a sip of sports drink every 5km. Recommended was an intake closer to 40g/hr with elite athletes taking in excess of 60g/hr. She suggested upping the carb intake in training and seeing how much I could put in without digestive distress becoming a factor. (Ive never suffered from digestive distress on a run so dont know that limit at all).
Last weekend I tested a new plan and over the 3 hours of my 21 mile long run, with no breakfast beforehand consumed:
1 litre of Gatorade = ~70g carbs
5 sugary snakes = ~40g carbs
1 Endura gel = ~25g carbs
total of 135g/carbs or around 45g/hr.
I felt great! Not convinced on the Kendal mint cake though (despite being a fan of the stuff when walking around the Lake District!)
40 sounds much more likely that 70 though.