That is my opinion based on what I know about the chemistry. It's also consistent with my wife's swimsuit degradation experiences (indoor no CYA pool vs. outdoor CYA pool) and with corrosion issues in indoor pools and with the salt study (here). It is not standard industry practice and manufacturers would likely disagree since, according to them, only FC matters in "real pools" (according to the Pinellas County study discussed in this thread).
Richard
