I bought a 2013 2320 last year with some light oxidation/chalkiness on it...I used the same process to fix it as I did on my old boat. First, I pressure washed the whole boat with a 40 degree delicate nozzle and light pressure. I had a lot of green algae and mildew to remove. I used a driveway disk in the cockpit, it worked really well. I used Magic Erasers carefully to remove big black marks since I knew I would be waxing anyways.
Once the boat was dry, I used a Dewalt power buffer with wool pads, 3M Perfect-It compound. I was able to go with the light cutting formula (old boat required medium), but the results are incredible. The hull still gleams 6 months later. That being said, the off white will never be quite as shiny and bright as a pure white hull, but I believe that's actually for the best as it cuts down on glare. The power buffer is a must; I was a bit worried about it the first time I used it, but just take your time and use light pressure and the right RPMs, and it's not that bad. Once the wax heats, it is easier. And watch the cord carefully!
For the gunwales and pilot house, I waxed/buffed by hand...real pain in the butt, but worth it. I sprayed all of the non-skid with Starbrite non-skid wax. My regular wash is with Starbrite blueberry boat soap and the PTFE deck cleaner (a MUST). We have a lot of gory battles with sea creatures on the boat that make a big bloody mess; that initial waxing is key, it makes regular clean-up much faster. If you want to get really fancy, you can use Cape Cod cloths to polish the brightwork.
Good luck!
