What exactly are you numbers and how are you testing to get them? How do you chlorinate your water?
During the process I used liquid chlorine, usually, I float pucks and shock with Dichlor. Testing is with strips, they almost always agree with a test at the pool shop.
What do you feel the sodium bromide did to your water that would cause this problem to go away?
It temporarily converts to bromine which is effective at killing the algae in question, ait then goes to a zero chlorine/bromine and a heavy shock restores the chlorine residual.
What do you mean when you say "the pool is perfect"?
It tests well and looks perfect
Why do you feel it is safe to use sodium bromide "in accordance with the directions" and what constitutes "overuse" to you?
Because it is proven to work and the product has been sold since 1983, I used the correct amount, as I understand it, more is not more with this process.
How are you sure that, of all the steps you took, it was specifically the sodium bromide that fixed the issues you were having?
Because I had recently done the rest of the steps with shock and a filter recharge and it didn't go away, with this product it was nearly instant.
Finally: how do you know the issues are actually fixed and not just temporarily hidden?
Who is to say I guess, but all evidence so far is that the problem is gone, in addition, the pool will be closed soon so that is good enough for me!
Like anything there are always multiple approaches that can be taken, perhaps my issue was small enough for this to work, and perhaps it will be back, and if that is the case I will update this thread.