Here's an argument for having the arrowhead be part of the line rather than
slapped on top: When exporting to a format that has lines with arrows, you
lose the arrowhead information, and the arrow becomes a set of lines that
just happen to be at the end of the line.
-Lars
--
Lars Clausen (http://shasta.cs.uiuc.edu/~lrclause) | Hårdgrim of Numenor
"I do not agree with a word that you say, but I | Retainer of Sir Kegg
will defend to the death your right to say it." | of Westfield
--Evelyn Beatrice Hall paraphrasing Voltaire | Chaos Berserker of Khorne