Comment 1 for bug 172182

Absolutely. If you could vary the width of a line by changing stroke width
on a node by node basis, you could have the quick, precise entry of the
bezier curves tool, and much of the subtlety of the caligraphy tool in one.
Right now you seem to need to choose between the control of the former, and
the latters ability to have width vary in one line.

This is a must have imho.