biotin was not bad, at least in the first couple of months in the caribbean where we had absolutely no growth. then we sailed to Cartagena, Colombia, and got such an incredible barnacle growth in their polluted water that our almost new af got killed (when scraping off those big barnacles also the af comes completely off with them). later, around panama and in the pacific (galapagos, gambier islands, marquesas), barnacles were not an issue, only algae grew, but those can be wiped away easily.

but exactly that wiping and scraping is the main problem with a soft af as so much paint comes off every time. we think now, since frequent cleaning is inevitable anyway, that a hard af would be better in this respect. what do you think, what’s your experience?