Kim, can you confirm?
Leave your TA alone. TA lives where it wants to live. The lower it is the less pH-rise you'll experience. If it's natural "resting place" is 60, you're lucky!
Manipulate pH to keep your CSI happy. Until you get your salt back, and your SWG running, CSI-zero is a good place to be, so let your pH settle a little higher. When you get your SWG going again, then set your pH so your CSI is around -0.3. These are guidelines. There is some wiggle room, so don't obsess. I only mention this in terms of setting your targets. Target a CSI of zero for non-SWG, and -0.3 for SWG. Anything close in practice is fine. Though I admit, I don't like to see my CSI below -0.3, and I'm currently monitoring my pool for calcium deposits. The closer I can get to CSI-zero and stay calcium-deposit-free, the happier I'll be.
Don't know about testing MA. I think I know that it is more stable than chlorine, so you don't need to worry as much about freshness.
And the other thing I think I know (Kim?), pools have a natural pH, similar to everything else on the planet. Slightly different from pool to pool, location to location. Fighting with it to bring it way away from its natural number can be a losing battle. What I think I noticed about my pool: I could fight it down to 7.2, or 7.4, and it'd bounce right back up to 8.0 in short order. If I only nudged it down to 7.6 or 7.7, it would still return to 8.0, but in about the same amount of time. I didn't gain anything by trying for 7.2, I only used more MA to do so.
I'm only using the IntellipH to keep my pH at 7.8 or a bit lower. I'm not trying to achieve 7.2 or even 7.5, because I already know my pool doesn't want to live there. I need 7.7 or 7.8 to keep my CSI around -0.3, and I had to dose every day to do that. Now, with the IntellipH, it's doing that minor dosing for me. Again, not pushing you to an IntellipH, just sharing what I'm trying...