Increasing PH during flower

I read an article online that advised to increase PH from 5.8 to 6-6.1 for early flower stage and 6.2-6.3 for late flowering. This applies to hydro.

I'm also seeing conflicting nutrient PH uptake charts for hydro online, so it's hard for me to determine if 6.3 PH will have the best uptake of nutrients essential for that stage of the plant life.

Has anyone else tried this and or confirm this is accurate?

I also understand mild PH swings are also ideal to get a wider spectrum of nutrients.

I have been running advanced nutrients products i run 5.5 to 6.0 for my clones until they root then 6.5 for the first feeding of my plants can continue on till harvest. I havent had an issue. Hope the information helps. Cheers! -G.I.JOSE