We had excellent results with Trinidad SR on our Atlantic circuit. After the Atlantic crossing to the Caribbean we had loads of funny squishy creatures holding on for dear life when we arrived in Grenada. Over the next couple of days, we noticed scores of little fish eating them off. Clean in a couple of days. Other than that, an occasional scrub while snorkeling was all that was needed. (By the way, we had excellent experience with Trinidad SR on Long Island Sound as well, contrary to many reports.)
It is important to note that these paints are hard to get in Europe, so we carried enough to touch up if necessary over a couple of years. We did manage to find Trinidad SR in St. Martin where all things American abound, but it was under a different trade name.
We 've not used the Micron 66 so cannot comment comparatively.
Vice Commodore, OCC