Propspeed, absolutely, for the pods. They are a unique aluminum alloy that doesn't accept other treatments well. I had an expensive job done a couple of years ago, etching and all that. I know the vendor well: they are a quality outfit and had done their preferred treatment on numerous large boats with great success. It began to flake off in about 6 weeks. Pics below were taken 2 months apart. The boat was hauled for reasons unrelated to the bottom paint. Don't waste a single cognitive erg on finding alternatives. Volvo recommends Propspeed, so just do it. Last image shows what they should look like. On the swim platform hardware, any bottom paint would probably work.