Ben, is your problem with this the conclusions about CYA or the effect on ORP? Much of what it says about CYA seems at my "first glance" to fit with your ideas. Is it just their spin that skews the results?

I've been discussing these issues with a friend who won't take my crystal clear pool on opening as evidence that I'm doing anything right. He also won't accept his annual battles with algae at opening and in mid-summer as evidence his 100+ CYA is an issue. That's why I've been stumbling across this stuff. Thanks for your input.