: I've been wondering about the possibilities of foam cored paddles myself, and
: not found too much info on it. Perhaps someone else knows more about this?

While the site doesn't talk about the construction methods much, you may be interested in looking at Superior Kayaks -- they are selling a CF GP that is built around a foam core. Old certainly meets new in this combination:

http://www.superiorkayaks.com/superiorkayaks010.htm