Not meant to be a How-to thread necessarily, but more focused on 'gotchas' that you most likely will need to address as part of your CPR OC swap. I recommend reading the following thread prior to beginning your project as there's quite a collection of techniques and tips to save you time and some serious cussing sessions:
https://pinside.com/pinball/forum/topic/playfield-swap-guide
Looking back since the completion of my swap, I have to say that I'm really impressed with the quality of the plyed board, artwork, colors, dimpling marks, and clearcoat. If you have been on the fence about ordering one of these, I'd go grab one now!
Read the instructions on the CPR website; these guys know what they're talking about. Get yourself some drill bit collars and use them religiously to avoid any chance of drilling through to the topside of the PF. Make sure before you drill holes, and especially for the mechs below the PF (DT bank, kickouts, flipper mechs), double check the dimple marks proper prior to drilling; you may need to make minor adjustments. I'd also heed their instructions on how to deal with the metal wire guides; that saved me some anguish - seriously!