Carl and I disagree a little on the ideal TA, but when using BBB I say to shoot for 80 ppm if you want to avoid pH rise while Carl says 100. I think either is fine and is wholly dependent on the amount of aeration there is in your pool. It also depends on your final target pH -- if it's higher, you get less of a tendency for pH to rise.

So pick whatever target you want, say 100, and just see how it goes. If you find that you are adding more acid than you would like to keep the pH at your target of, say, 7.5, then you can always lower the TA some more or can choose a higher target of 7.7 or so.

And re your shoulder and circumstances -- you're a hero and I'm sorry that fear paralyzed some of your partners, but am mostly sorry that you got hurt. Certainly, making your pool a bigger frustration will lessen your (real) pain.

Richard