The caloric burn charts are interesting and reasonably easy to understand and apply. At my best I learned I'm likely burning less than 800 calories per hour and the numbers were consistent when I compared my pace when cycling and running. It was surprising to learn that even elite athletes on the Tour will only burn 1000 calories per hour, in part due to their efficiency.
If you want to try before you buy, I've found a number of youtube videos from the authors Allen Lim & Biju Thomas illustrating some of the recipes. The hardback book (Feed Zone Portables) was on Amazon for $15.95...well worth it from my reading so far.
I initially tried to PM you pdedes, but my post count is still under 50. I'm glad I read your suggestion in the Waffle Stingers thread.
For those who have tried them...any favorite recipes?