I'm getting ready to do this step, and a coouple of questions come to mind. Do, or did you mount the rudder to the VS to get the right clearance between the surfaces ? Or do you just go by , on the VS for example, the exsisting sheet metal ? Did you use a strait edge to align the tip vertically? Like an extension of the surface onto the glass. I started to do this and thought mabye it would be a good idea to have the surfaces mated before I start cutting.