I often make vector plots, and one detail that annoys me is that often filled arrow heads are cut off at the end, so that they don't go to a point. I have attached an example that does this. One challenge is that setting lw 2 (or greater than one) causes wide lines to form the arrowhead. This means that to make visible vector plots, you have to select a wider line width, which gives you cut-off arrowheads. Also, when there are a variety of arrow lengths, arrow heads can be cut or not somewhat haphazardly. Is it possible to make them go to a point more consistently?