Changing A ControlDesigner?

I have a HelloWorld widget working, exactly as is demoed here: http://www.sitefinity.com/blogs/gabesumner/posts/11-08-29/ldquo_hello_world_rdquo_guide_to_custom_sitefinity_widgets_amp_controldesigners.aspx 

When I add a new property to HelloWorld.ascx.cs, add it to the form in HelloWorldDesigner.ascx and update it in the HelloWorldDesigner.js file, it doesn't save the contents of that new field.

Does the call to this._propertyEditor.get_control(); somehow get binded and require a manual update somewhere that I'm missing? It's as if the controlData object isn't aware of the new property that's been added.

Any help is appreciated.

Hi Cory -