Question right up my ally. Micron 66 is still made, follow link below you'll find it(and its in stock ready to ship out of Rhode Island). The advantage of the Micron 66 is that it will work even if your boat stays in one place for a long time. It sometimes will produce a smoother finish than a VC offshore and Baltoplate. This is because it acts like a bar of a soap continually releasing biocides. Now if you did the proper range of wet sanding on the VC you could get a faster bottom but you will be cleaning it every week by mid summer.
http://www.jamestowndistributors.co...erlux+Micron+66+Antifouling+Bottom+Paint