[Visualpython-users] arrow shaftwidth question

The implementation - for reasons I don't understand - has the arrow shaft
dependent upon the arrow length.  Length times .1 as the default.

I am looking to override this behavior - to achieve a constant shaft in an
interactive environment where the arrow length might change dynamically.
Would think that a "normalization" routine would work - dynamically divide
by arrow.length.
But haven't had success.

Anyone have ideas on this?

Art