I drew in a set of hull lines from a boat plan, tonight.
Used them to perform a sweap and basicly it worked ok, except for the undulations visable in the attached pic.
I can see how they're being created but not how to overcome it.
A lot of tinkering and trying this n that leaves me wishing I could rebuild the surface with control of it's surface divisions.
I tried redrawing all my hull lines trying to position the points as uniformally as possable but the pic shows my pitifull result.
Looks like a pea pod, not half a boat.
It's called loft 4 but thats a typo, it should be sweap 4.