Sound advice for sure! I was just wondering if we get tangled up with a lunch reservation time or something, if we would have to worry about it, but as far as planning, we'll plan to stay within the window for sure.
They are going to be enforcing these in the spring, however, like at WDW there is some degree of allowances for reasonable return times later than on the printed ticket. If you don't abuse it, use common sense and understand that they might be enforcing it you should be okay. I don't recall the exact limits that I've heard for WDW, but I think it might be up to 30 minutes post late return time. Bring your lunch receipt and you should be okay.