where is tut...
Oh, you're right. There's no note about it in XIN. I will add one.
The display list thing is news to me. how would/does one use it??
Depending on "how dynamic" your Shape3D is you can set the shape's type by invoking the setType() method of the Shape3D instance.
If you know, you won't change anything on the shape's Geometry nor its Appearance you can set the type to STATIC. This will give you the most speedup, but is most expensive in case of any change on this shape (or the change won't even have any effect). If you only know, the Geometry is static, but the Appearance will change, then set the appropriate type, etc.
For any further questions, just ask...
Marvin