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Adpro - spot or whole panel?

The clear is peeling off my daily driver - 05 Tacoma. I've pulled all the plastic panels (bumper cover, wheel arches etc) sanded them down to primer where the clear was compromised and down to base where the clear was good. Obviously, I've gone through to raw plastic in a number of spots - a lot of spots on the bumper.
I have SPI adpro, and SPI red epoxy (the truck is red metallic). I was planning on adpro, epoxy sealer, base then UV clear. On the plastic parts should the adpro be applied in a spot fashion just over the exposed plastic patches or over the whole panel - bearing in mind that most of the panel has old base or primer exposed not raw plastic.

This is not a show car, just a daily driver, but I would like it to last.