I like it simple and quick.A quick spray around the edge,then a rough saw through the hull,and sand paper down to the paint line,Job done.This method also allows you to play with the pitch,and roll angles of the hull without cutting.Changing these from a dead level deck give's a model a bit of a movement and a bit of story telling.With out it a boat is just a pritty hill on your table.
Rumacara,as your interested I'll start a tutorial later in the month over on the Workbench.(as I've just posted the images of the 8" howitzer,and I've a few other jobs to finish first.).
Mark.