You don't want to "pull him out of the green"....the dark greens are great, healing numbers! You want to (hopefully) keep him in those dark greens as much time as possible. It's the lime greens you need to be more careful with. If he drops below 68, you want to try to nudge him back above it while trying not to send him any higher than necessary.
You also need to make a decision on which dosing method you want to use,
Start Low, Go Slow or Modified Prozinc Method. You test often enough to do MPM but it's totally up to you. The main difference is how often you increase the dose (when needed) and at what point he "earns" a reduction. On SLGS, it's dropping below 90, on MPM, it's not until he drops below 68.