Yep, the hinge line was sealed. As mentioned above the manual says the airplane will experience flutter unless the hinge lines are sealed.
Work has been in the way so I haven't had time to work with it, but this weekend I'm going to check all the balances again and check for warps. I really think the guy who suggested different leading edge radii, probably hit the nail on the head and I am going to check for that as well.
steve