I didn't mean to be dense, fully realize that you are very knowledgeable and experienced, and was not intending to advocate for gaming the system. It never occurred to me, given that a LOT of the expected WL movement will be occurring over the next few weeks, that common sense or honor would dictate that holding 2 As would be permissible, but not more, if, for example, you had one PTE on 5/1 and received 3 As off WLs in the following week, where each school gave you a week or two to decide.
I want to do the right thing myself, and wanted to know what the requirements are for when I advise anyone who asks. I have always been led to believe that it is perfectly acceptable to hold all As received in the two weeks prior to 4/30, as well as any time thereafter, as long as the issuing schools allow, with absolutely no ethical qualms or violations of common sense or honor. Why would, or should, anyone feel compelled to act before a school requires, merely because they are blessed with more than two choices, and common sense and honor dictate that they reduce to two immediately in order to expedite by a few days the next call someone will receive when excess As are dropped?
I honestly had never heard this before, and was truly wondering if I missed something. Now that you have explained, I just have to say, as someone who might be in this position next year, that I respectfully disagree with your logic, but now understand where you are coming from.