Microsoft Chart - Using FastLine instead of StepLine for high performance ?

Question

Hi,

I'm using Microsoft Chart in order to draw some stepline charts.

Should I use StepLine directly or should i make my own using FastLine in order to be faster ?

In other words, do anyone know if the stepline is built on the Line or on the FastLine type.

I've got around several thousands points to draw.

StepLine : http://msdn.microsoft.com/en-us/library/dd456618.aspx

FastLine : http://msdn.microsoft.com/en-us/library/dd489249.aspx

It's seems to have good performance with StepLine too.