The original post by Greg Davis showed the amount of Thiosulfate residue in film regardless of wash condition. The wash is irrelevant as long as you get to the lowest level (archival quality) or next to lowest (commercial quality). For those that brought up this topic before, there are indeed 2 ANSI standards as noted here.
In any event, you invoke arguments shown later in the thread to be theoretical and as stated from posts #33 onward, the actual data from practical experiments always wins. If a given wash is sufficient to achieve a given condition, then it works. Change the temperature, water supply (hardness and etc) and all bets are off. You have to do the tests all over. And, your calculations would have to include this type of variable as well, which it does not.
Bottom line... I trust Greg. But I would verify with my own work flow and wash water as an initial starting point!