Been using the BBB method since setting the pool up and have had crystal clear water.
I keep my FC around 3-5ppm at all times.
My PH is a little high at 7.8 but I like it there.
Bather load, 2 people for about 1.5 hrs each day.
The only thing I changed was the filter I use, I switched from the standard filter that comes with the Intex "which I cleaned daily" to the Filbur FC-3710.
I run the pump about 4hrs per day and before changing out the filter was keeping the pool crystal clear.