If the sweet spot was truly sweet, I never would have showed up here.
How to maintain the sweet spot??? Oh no... I am starting to lose the sweet spot... I had better drink some more to get back to the sweet spot once again... oh no, I overshot again...hello hell, I'm back!!!
I got nothing for you on how to drink successfully because I never learned how to. I only learned how to do it poorly. Sobriety I can tell you about because that I have learned to do that successfully and contentedly. Drinking...not so much. Lots of people on here know about sobriety, drinking we were failures at... so we can't help with that.