Hey E,
I know Duane was steelheading today and away from the computitater so I'll chime in..
The chartruse Fire Brine has been working well for me and I've been adding it to my brine before I cut plug the herring.
Often, I'll cut bait ahead of time so the cut plugs are going back into the Fire Brine afterwards too, So, it's working fine both ways for me.