Has anyone here ever used Vivid to bottom paint over Trinidad bottom paint?

[Sweatequity]

I have a Tournament 22 that could use sprucing up. It has Trinidad bottom paint that is about 6 years old that I put on. It does have several layers of barrier coat on it. There are areas where the paint has rubbed off and the rest of it looks pretty good for the age. The website says Vivid is compatible with Trinidad, Just sand and apply is what they say. Has anyone here done this? I'm not sure to what degree I would want to sand it. Just to rough it up? I would think it would look somewhat brown copper after sanding.

 

[seasick]

In general the guidelines are:
If old paint is ablative you can repaint with ablative after a scrub with something like a scotchbrite pad.. Usually if the old paint is not peeling, you do not have to sand.
You can nor apply hard coat over ablative. The ablative has to be removed.
If you are applying either ablative or hard coat over old hard coat, you usually need to sand to roughen up the surface. You do not have to remove the old paint.

I just checked the Pettit compatibility chart and it states that you need to sand before applying Vivid over Trinidad