I won my last war mainly by accident.
I had stray current in my tank that killed most of my fish. It took time to figure out what was the cause. I would come home from work and another fish would be MIA. The fish were just gone. Finally I saw my angel being shocked, tested the water and found out my return pump was leaking.
Within a month I had HA on 30%+ of my rockwork. I dosed VSV and while it did not spread it did not go away either.
One day I had just made up 16 ounces and was about to dose my 10 ml when I heard my son fall and get hurt in his room. When I came back the bottle had fallen into the sump and was pretty much mixed by then.
A few days later my skimmer started pulling oil. I emptied the cup twice a day for over a month and the HA went away. I never had the bacterial white haze from over dosing. When it got down to a few patches I threw some large Mexican turbo snails in and it had not returned.
Another thing I did was removed all my LR from my sump. I posted a thread asking if the issues of the rock out weighed the benefits. The tank stayed HA free for the next 8 months until I took it down. I still have the rock in a holding tank and I have no more HA.
Here is a picture of about 10 hours of skimmate production: