I like to get the finish as close to flawless as I can safely. Since OC/OG are permanent coatings you are really locking in the finish that you have so it needs to look good. OC/OG require a CLEAN surface to allow it to bond so I have to ensure I remove all of the polishing oils and any fillers that might be left on the paint. I have been using CarPro Eraser with good results. I usually clean the panel 2-3 times to make sure I haven`t missed a spot. When applying the coating you need to make sure you don`t have any high spots on the panel. If you allow the high spots to cure you will need to polish them out. If you see them before they cure you can wipe them with a microfiber to level them out. I rather spend extra time inspecting the panel while I`m coating than having to level the spots later by polishing. Hopefully this is what you were asking about and I was able to answer.
Sorry to the OP for getting the thread off course.
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