I hope so too! I didn't actually use enough AA to get rid of all the stains. You can still see some in the pictures with the water drained, and there is still a bit on the bottom of the pool. That said, the pool looks SO much better, especially the steps. I will probably treat again with AA the next time I need to drain large amounts of water (presumably I will have to do that periodically to lower CH).
As for right now, I'm happy with how much improvement there is. I guess I will cross my fingers and start the SLAM when I get home from work. I will wait to add the Metal Magic I bought until after I pass the SLAM and FC returns to normal. The MM may reduce the remaining stains, if not I won't bother with it again. I'm hoping to avoid the need for a maintenance dose but I guess I'll cross that bridge if it comes.