I'll check at my local Walmart, but it wouldn't surprise me to find out that it's all the same product and they are just putting different labels on it to make us think it's different in some way.
Stone76 - From all my reading, it's mostly the Texas area builders that are against SWGs. It's because of the soft local stone they use for the decking. As far as any other issues they may talk about, those are almost always due to non TFPC balancing of pH and other levels.
I've a thought. Why not think bout the wife doing the testing. It's really fun and really makes you feel great to know that YOU are in control. It's kind of amazing how it makes you feel. Automation is out there and it can do pretty much everything. Unfortunately, all electronic systems...
Another option might be a dome. We have a few members that have air driven domes over their pools and that makes them usable even in winter is places like Michigan
What has been added to the pool since you filled it? If nothing has been added, then you wouldn't have a CYA reading. That needs to be added since it isn't in new water.
I guess the question is. "What did the setup guy do to 'get you going'"?