It wasn't planned - Here is why - I've had a terrible mustard algae issue for YEARS. I lurked here for many years before joining. I knew I had reached stabilizer lock. But I still used the Trichlor tablets.
2014 - CYA probably around 1000 PPM (7 years Trichlor)
2017 - CYA too high (3 years TriChlor)
2019 - CYA Too high and we had a dead possum (Mrs. Beard said she would not swim unless I changed water)
2020 - CYA Too high - I had started to follow TFP methods in 2019, but wanted to "use up" my Trichlor and overshot my CYA.
This year (2020) after refilling, I nailed my CYA level and have followed the TFP methodology. You have to have the right test kit. And since, I've added a pH meter to make that reading quicker and easier. And surprisingly, the Speedstir really helps make the tests more accurate and faster. And No mustard algae!