"Somehow some misinterpretation got in there. Last year, I went from Roads End up to Lake Reflection in nine hours on the first day. On the second day, I went from there over Harrison Pass, down to Lake South America, and over to the next small lake."
Ah. Well, then, if you'd of had some of Uncle Tom's home brew you would have been over Harrison in one day, no problem. Anyway, it was still a hump to be proud of. Even if you aren't over 60. ;)
On a more serious note, there is definitely something to be said for rapidly absorbed carbs on long days, especially with a little high quality protein mixed in.
I'm not advocating it as THE complete solution, but it's a good arrow to have in your quiver.
For me, it's the only one, but everyone is different.
A little context: I don't generally hike much more than 12-14 miles in a day, for which the 4.5-5 oz packet of "P" in combination with body fat is sufficient, but when I do go longer, I simple double/triple up on the "Perpetuem" and cruise. No need to chew, digest, worry about dental hygiene or messy wrappers, or any need to stop along the way, except to get water. This works for my medium mileage trips of up to 10 days. Beyond that, as Malto has demonstrated very well, you need a wider spectrum of nutrients in greater quantities.
If you decide to use it, Bob, would you let me know how it works for you?