I just got back my side covers from being powder coated, actually these covers I fabbed myself welded brackets for them and they will fit the left and right side to hide the wiring and throttle bodies. Now the question, there gloss black and appear to have what appears to be a wavy appearence. Now just to give some background, I painstakingly made sure they were perfectly flat, went from 80,120,180,220,380,600,1000 and then 1200 grit sandpaper, so the surface is absolutly perfect. Has anyone ever experienced this problem? Also is it possible to wet sand powdercoating then just buff it out. Any help would be appreciated.