After the first fill, I
: scraped some of the bumps over the graphics. I was left with white
: spots.(see pic) I thought that they would vanish under the next fill coat.

DISCLAIMER: I am NOT a professional, I am sure there is an email address for the epoxy and or Glass manufacturer that you could send this pic to.

Steve, I usually don't respond to technical questions but this looks like something I experience when I lay bias cloth on my boats and then try to feather the epoxy edge. It seems to me that the scraper actually nicks or scrathes the glass cloth. IMHO it seems this is pretty likely to happen to alot of people because the first coat is so thin over the glass. I use a pro-prep scraper and it works too well sometimes. I have had varying degrees of sucess hiding this but for the most part I just let it go. By the way it is a beautiful craft regardless.
Are we still going to hook up to paddle in the Adirondaks this summer?

Keep building, Elliott