D, I have a R23 blue hull that needs moderate oxidation attention about every 6 months. It’s in the water water round in Florida and Maine.
First step is Meguiar’s power cut 91 using a medium pad and a cheapo 6” DA orbital …..all available at Harbor Freight. I then apply the Power Lock by hand with a spongy applicator,let dry and wipe off by hand with rag stock from Lowe’s. The whole process hull sides and transom only, takes about 4 hours and looks fantastic. I do the top sides and cockpit as needed, and the roof, both as separate projects.
BTW I also use Power Lock on my cars. It’s half the effort to apply and remove, and lasts much longer in my opinion. I’ve only seen it on Amazon. Get the smallest bottle, as a little goes a long way. Avoid over application. Good Luck!