Why would you recommend optimum polish for a DA ? It works 50 times better with an orbital ..
The compound and an orange pad would be great , but I HIGHLY recommend something else after that to finish the polishing .
If you can find a store that carries vanilla moose glaze and OC , that would be a very effective combo .
If you can find a place that carries OC , VMG , AND ex or ex-P+ , that would be good as would optimum spray wax for your lsp .
two or three coats of ex(p) or Optimum wax gets better lookign after each coat .
Optimum polish doesn't work that great on a PC imho ..
P.S. Use the blue pad for your polish , white pad for first layer of sealant and to remove it everything after that by hand as pads waste product .