Smooth Transitions

Hi, I’m trying to make a smooth transition between hull and a simple bulb form that I have done by lofting some sections.
But I cant do it, I ve tried all kinds of tools that I ve know, no luck so far.
Any ideas?

Please Dean, attach a file to your post. It’s rather hard suggesting anything without seeing what you have.

Also, here is a link to a way to model a hull with a bulb.

There is a Rhino 3dm file that shows this technique that you can download here: