When hovering over a chart data item (e.g. circle), the jqeury "mouseleave" is activated almost immidiately - the "mouseleave" event is fired before I actually leave the circle.  This causes the tooltip to remain, the circle itself is shown as "onHover" (e.g. filled) - but the line is removed, since "mouseleave" is fired and this is where I remove the line.

here's an example based on kendoui example: http://dojo.telerik.com/eqaLO
Note the "Status" at the bottom of the chart - it is "Hover" when you start the hover and "Left" after leaving the circle (according to the event).

I believe a "seriesLeave" event could solve this.