Anybody ever use black widow paint ? They use it on racing sailboats I'm told ,250 a Gallon

Not available on the shelf here yet but I do highly endorse the Vivid.
I have a feeling that the trick with this stuff is you have to burnish it after it's dry to get a real speed benefit . And you probably cant put anything else over it afterwards unless you completely remove it . And sanding/burnishing the bottom of a boat aint fun !
If , however , its antifouling properties are as good as Vivid and there's a speed advantage it ought to be a winner in certain circles.

Thanks for imfo have a 82 Velocity leave it in water afraid to use it cause of devaluing a classic hull