Thanks Sharon, the nutrition part will be different. Normally when I ride long distances I eat fruit, nuts, etc. and drink electrolyte replacement drinks for fuel. With an event like this I've been told I should eat my normal breakfast (toast/pb) about 2 hours before event, then gel 30 minutes before and something like Perpetuem during ride for fuel. I have samples of Perpetuem and have tried it with no bad effects so will probably stick with that and use Heed in other bottle, plus gels. Sound like a good plan?