I have always said that when you throw kids into the mix, the numbers change. Even without doing all the running around Dean did to get value, the kids QSDP will see a 20-30% savings. The regular kids' meals at QS are $6.50, so two of those are already $1 over what you pay for the plan.
As for the so-called "absurd limitations" Havoc put in to his challenge, the ONLY limitation he gave you was to not use the combo plate at Cosmic Rays and still show a 20% savings at MK for an adult. How is that absurd? How many times can you eat chicken and ribs? I think his request was a reasonable one.
Actually, at most Qs locations, prices were just increased to $5.49, not 6.50.
Because you are talking about such small numbers, percentages can appear huge for the kids. A mere $1.20 savings is 10%.
So 2 kids meals, without a snack - no savings.
Throw in the snack, and the savings can suddenly appear to be 10-20%.
As to my restriction that Dean complained about, my restrictions were simply to be realistic. Magic Kingdom is by far, the most popular park.
On any given day, most people stick to 1 park.
So I said, let's take an adult spending the day at Magic Kingdom. And order anything except the combo plate. Dean continuously claimed one could save 20% "easily" on the qsdp.
This demonstration showed how hard it really is. By removing just 1 option at the Magic Kingdom, it became a mathematical impossibility. He had to add a child, then feed the child at locations different than the adults. (not common or realistic). He complained about being limited to just 1 park for meals, but how many people are going to take a lunch break at DTD and then return to MK? (requiring you to go back to a resort, and then switch to DTD bus). Unless you're stating in DTD, you probably won't visit more than once in a trip. And you're also not going to use Pepper Market unless you are staying at that resort.
Realistically, people eat Qs where they are-- the park or their home resort. Realistically, Kids and adults eat their meals together at the same locations. My "restrictions" would be insignificant if savings were truly so "easy."
What this has all shown -- kids can save 2-3$ on the qsdp, which is mathematically a big percentage. For adults, any savings are trivial unless you order 1 of a handful of items available out of hundreds. (or thousands).
I'll answer my own "feed 2 adults" challenge myself shortly.