Vic,
FourQ was using the clear coat like you are and had great results on the small stuff he was doing. It looked like he'd just need to block it with 1000 or so then buff. If you can, shoot some before/after pictures of the clear process. Some pics of the the last coat of gel before sanding, after sanding, after the top coat, and then after the top coat sanded or buffed.
Actually, I'd be okay with the thought of doing the topcoat on the top of my boat where I want to do a color change. I'll probably do the additive on the bottom where I'm not gunning for max shine anyhow. The only thing that scares me away from the topcoat a little would be longevity. I keep hearing of clears failing after a couple of years. I know there are exceptions, but I have to store my boat outside for the time being, so I don't want to be looking at this type of project again in a couple of years.
Talk to you later,
Chris