help me out here because I'm missing confused.

When I google floraflex it's a company name, not a specific product. Which product auto Ph's from their website? or which product are you refencing specifically?

You say it's be PHed perfectly, but how long does the solution work before it drifts out of range? How many grow cycles have you gone without whipping out the Ph pen? I think we're talking about 2 different PHing solutions, one auto and one stable, which are two different things.

Which Ph product is sold as auto phing, or super stable ph that doesn't require any ph pens? I'm interested especially if it's cheaper than Advanced Nutrients.