You did not mention what your hull is made out of. I understand Micron CSC is good for glass, wood and a properly prepared and primed steel hull, but is not recommended for Aluminum hulls and fittings. I also understand it will stand up better to being dragged up on a trailer, but will not be as effective at keeping the hull clear of growth if you leave it in the water for any length of time, especially in the summer or tropics, compared to highly ablative paint.
Have never done it, but it could be worth exploring to see if it would be possible to completely remove your existing paint and end up with the original good condition high gloss gel coat, assuming the hull is glass. Did they sand the gel coat first? Did they prime it before the soft ablative paint? You could try a test patch restoration before making the final decision to repaint or try to remove. One wonders how well a less ablative paint will bond to a highly ablative paint. Would you need to remove the highly ablative paint first? My highly ablative paint is so soft you can pretty much scrub it off with a rag when wet from pressure washing. You have to be very careful with the power washer to just clean off the surface scum without removing the highly ablative paint. If you are sanding that toxic stuff you may want a respirator.
