I believe you will find that most of us who have switched to BBB (I did last year) that the key to BBB is a proper test kit. That generally consists of a kit with liquids that you use a drop at a time to find out EXACT levels of chemistry.
Test strips can and will be flawed due to inconsistency of color in the human eye. Try this......look at a nice blue sky with your left eye closed, then try it with your right eye......slightly different colors? Test strips can get you in the ball park, I want to know exact numbers. Actually, YOU need to know your exact numbers, otherwise you are wasting money needlessly. Not many of us have that much money floating around just to "waste" on a pool.
You have spent alot of money no doubt renovating your pool......I'll bet it looks spectactular.......keep it that way buy making the best investment you ever can, get a "real" test kit. It was the best money I have spent in a long time. Last year I could tell you EXACTLY why my pool water looked the way it did because I knew EXACTLY what my chemical levels were. Having good water added alot of enjoyment to the pool and I knew exactly why it was that way and how to keep it that way.........kids and wife had the best time ever last year because of it.
Bob E.