Sorry if I've missed this in the discussion but I believe the meals are based on the dates of your trek. I.E. If you arrive at PSR on July 8, your Day 2 (first hiking day), 3 and 4 meals will be #9, #10, and #11. This continues through the trek from what I've read.
We, too, purchased a sampling so the boys could get an idea of what the meals look like. We found that each boy's share of the food amounts to roughly two 2.5 gallon ziplocs for four days. To evenly distribute, each boy has two of these ziplocs with their names on them. We hope that this will expedite redistribution in the a.m. when the bear bags come down.
BTW, we're using the turkey bag method on MSR Pocket Rockets, with two 4 qt AL and 1 6 qt AL pots, all with cozies. Plan to heat water in the small pots for stability and safety. One for cleaning and one for rehydrating.
We haven't practiced much and fully expect a steep learning curve... Adventure Awaits!