I guess this being my first plaster pool, and the plaster still less than 6 months, I'm still working on my long game. I really need a full season to know better. My lowering of TA was slow but did steadily come down, as much suggested here. Now, my TA is very stable and in range and stays that way. It's a stable variable I hope to keep that way with also having high TA fill water.According to the video, aeration has minimal effect. The surface area of the water gives plenty of aeration.