Tandem axle trailer 201D yr,2000. Recently noticed a sag in the carpet on inside fender wells and upon examination found that whatever the carpet is over is rotted away in several area's both sides of trailer. I guess I'll cal EZ loader but just wondering if any other Cobra owners have redone theirs and what thickness marine grade plywood was used? Great boat since I bought it new and no gelcoat issues. Issues with trailer lights, surge brakes always seizing up but no boat or 225efi black on back issues. Thanks for help.