Thanks for catching the typo. As far as lowering TA there is a sticky here on the forum that explains how.
One thing I have to caution you. This is a pool, not a science experiment You are starting to overthink things and looking for problems before they materialize.(I have been following your threads, as you know). Now I can debate the theoretical chemistry with the best of them (as the long timers on this forum well know) but I choose not to unless their is a REAL reason to.
My suggestion is to start ENJOYING your pool and stop worrying so much about water balance. That's wny we got 'em in the first place, right? You hvae been given advice. Don't overthink it.
BTW, the amount of bubbles produced by your pooskimmer should not have any major impact on pH rise since the amount of aeration produced is going to be small. This is what I mean by overthinking.