Just a quick update to anyone interested.
I have not needed ANY acid in my pool for the past 3 months. pH has been steady at 7.6 and ALK at 80-90 ppm. (We has some rains so that might account for a need for less acid and I have had to top off the pool and my fill water has a TA of between 80-110 when I have tested it on various times so this might account for some of the stability but not all of it!)