After a few years of procrastination, finally got into it and scraped many layers of antifoul off Whitepointer, what a slow laborious job, 6 days to scrape and another 4 to fill and sand smooth ready for bottom paint, im very happy with the result.
Ha ha, yep, its the time it takes that gives the poor reputation these systems have. If your prepared to learn and do it yourself, they are great and reliable once sorted, but if you pay for this, it takes time and is therefore expensive!