The following worked for me at the weekend:
1. eating throughout. I aimed to eat every hour and calculated around 50/60g of carbs. This worked for the first 2 legs where I could easily consume savoury stuff like croissants, maltloaf, fruitcake etc. On the later legs I ate bananas, gels, shot bloks, boiled sweets.
2. During each hour I consumed a mix of slow release carbs and quick release. I was eating something fairly constantly - perhaps every 20 minutes or so.
3. At the end of each leg I consumed the following: Leg 1 - bits of flapjack; Leg 2 - small pot of rice pudding; Leg 3 - 5 or 6 small boiled potatoes; (can't remember Leg 4) - all washed down with a mug of tea.
4. I also had a carb drink with me on each leg.
In short, it was the constant feeding of a mixture of foods and drink, not reliant on big food stops, that helped me. I never felt sick, got cramp or had cravings. It was said on another thread that eating well on Legs 1 and 2 will set you well for later on. I think this is probably true.
Bobster was it your actual attempt this weekend? When I met you I assumed you were on a Recce. I take it you succeeded.
I most likely did not eat enough on the first two legs.