Trouble with Fillets

 From:  John (ENTANGLE)
2145.1 
Hi, just started with Moi but I'm having a rough time getting it to do what I'd like. I am mostly used to poly modeling so nurbs are new to me, I think I have a basic understanding.

Anyway, heres the problem, I have this guitar body:



What I want to do is fillet both of these edges (at different thickness) so that they're smooth, but for some reason, I'm only able to get a miniscule fillet in (around 0.01) on one of the lines. If I remove some of the neck fitting, I can get a nicer fillet on the top, but the line underneath won't fillet.

Confusing huh =\