If you look at the GoJS samples which include pointy arrowheads, and zoom in a lot to see the arrowhead tip close-up, then in most cases you can see the link line extending up to the arrowhead tip. So you don’t get a crisp, sharp tip. For example, try zooming into an arrowhead for the [Minimal GoJS sample].
This is not always the case. For example, the [Multi-node path links sample] has arrowheads with perfect, sharp tips.
Is it possible to get sharp arrowhead tips for all types of arrowheaded link?