An option should be added to size the splitter to ensure inner content is displayed rather than having scrollbars inside the panes.  A key reason for this is when loading/displaying dynamic data via ajax, you don't know what the height might be to display it...so once you have loaded, you need to set splitter height to height of pane containing the content.  

ATM I achieve this via the following approach:

http://www.backalleycoder.com/2013/03/18/cross-browser-event-based-element-resize-detection/

But would be nice to have integrated into splitter itself..