I think most of us have figured it out by now--Inkscape needs a width tool.
I can see people pointing at Power Strokes right now, going, "Are you blind or something?"
No. I hate Power Strokes the current Power Stroke width interpolators--they usually end up doing something like this:
That is a completely excessive amount of nodes for a two point path--In fact, that particular path could be represented with a skeletal path effect and look exactly the same:
Do you see what I'm getting at here? Having fewer nodes decreases calculation time on a path when you are editing it.
Now, I suppose, to the main proposal here.
2 new LPEs (Live Path E