saw your post about Ducky to remove exhaust chalk and was wondering if you have tried the Ducky Supreme 4 Restore & Revive Gel-Coat ..

No. Have not tried that. I'm still doing the sand,compound,wax thing or "Top Secret" clear coat. I did try one a couple years ago. It was like putting a coat of Mop $ Glow on the boat. Then a year later you Re-wax the boat........oh! it was awful.