Long story short, I have had some pitting which could be from a casting issue or possible propcavitation on my propellers. Galvanic corrosion was ruled out after tests by two different companies, one of which is an expert in the field. I am hauling out in a few weeks, and have been considering applying prop speed. I recently found out about the prop guard coating which is a ceramic coating and used extensively in other industries, and on boat propellers in the commercial fishing fleet, and some sport fishers. Overall, it does not have widespread use. This may be due to the Fact that The application process can only be done in the shop, and requires a few days as opposed applying prop,speed in the yard. Costs for both coating systems are similar, but I think the ceramic will last longer and could proved better protection. Has anyone used this product or talked to people that have? Do you think it's worth trying over prop speed? I have not used any coating products before, so looking for feedback. Thanks, Fletcher.