Friend of mine messaged me and said he wanted some correction done on his mustang Gt (05-09 style) to remove sprinkler water spots. Car looks pretty good otherwise. I told him I'd do a test spot to see if I could do it and also that I have more experienced detailers around to refer him to if it exceeded my skill level. Testing went well and I'm going to do the rest of the car..which will require spoiler removal. I am writing to ask for any guidance on the re-installation...if I need to have any special materials on hand to make sure it seals up. Thanks! here's a 50/50 of the test section...I used FG400/MF cutting disc/GG3in. After the photo I applied a coat of wax to protect the area until job completion.