Can you include the ArcGIS online locator services in a composite locator?

[TomWayson]

I'd like to build a composite locator that first checks a local US Single House style locator using my own data and then fails over to use one of the US locator services provided by ESRI (i.e. http://tasks.arcgisonline.com/ArcGIS/rest/services/Locators/TA_Address_NA_10/GeocodeServer).  Is that possible?

If not, is there a better way to do this other than having the client first try our local service, and if no candidates are found, then try the ESRI service?

Thanks

[AlexanderKhoroshun]

How about including ArcGIS online locator services in a composite locator in ArcGIS Server v.10.1.1 (SP1)?
ArcGIS desktop crashes when I'm trying to publish such composite locator.
Any advice/help from Esri?