I am sure it will last just fine. As long as surface prep is good (remove oil,wax, dust, sand) which I am sure you did, should be good to go. I would leave her in the hot sun for a while to harden up the paint- a week or two if you can stand not sailing her. These petroleum based paints always take longer to harden than what the directions say. If you can let the paint get good and hard will last a lot longer.
Thanks for the tip, case. I'll leave it for another week (although we're dying to get out on the water).
I did notice that the spray-paint on the mast took FOREVER to really harden up.
Have you (or anyone else) "touched up" the Brightside paint? I've noticed that in areas where I tried to go back over something, it left a rough texture around the new paint. Can I polish that out?