I just started the BBB method in July with 100% new water after a new liner, 30k gal pool, vinyl liner.
Everything went great for 2mos, my numbers were always as follows:
FC: 3 to 5 (generally averaging between those but usually 3ish, maybe a dip here or there for a day to 2)
CC: 0
PH: 7.4 to...