Throw away your pH test kit!
Just kidding. But seriously. Unless something looks off in your tank, let your tank decide its pH.
Yes, I do have pH on my controller, much like everyone else, but I don't react to it unless it goes way out of whack for some other reason (doser is stuck on or something...).
I have some pH buffer but only used it once long time ago. Probably will never use it again.
Edit: If you click on my footer and look at my pH graph, you can see its daily range.