Question: how to throw an error in a ColdFusion web service?

I've been trying to solve this promblem for some time now, but it seems there is no simple solution for this:
When you look at your webservice WSDL you have three operation parts: input, output and fault. The fault type of a generated ColdFusion WSDL is "CFCInvocationException". This is fine for most purposes, but not in my case. For example: I want to validate the input of the web service call to see if everything is correct before executing the method. Let's say you have a service to order something, then you want to authenticate the user, check the amount, and see if the product is available. If something is not correct then I want to return a fault.
In the service you can set the HTTP status code to 500 by using getPageContext().getResponse().setstatus(500);
But I still want to return a fault code and a fault message. If I generate this and return it in the body it will be returned in the SOAP output part, and not in de fault part. If I use "throw" to return the error, then it will be added to the "CFCInvocationException" and not my own fault type.
throw (message="some",type="urn:errorType",errorCode="999");

Does anyone have a solution to return a valid custom web service error (that is defined in the service WSDL) that will not be overrided by the ColdFusion fault handler?

UPDATE:
I haven't yet looked into CF11 so I don't know if this is fixed in that version, but I read a solution which isn't very elegant, but works. In short: you have to give the webservices their own application.cfc and use the onError function to catch the ColdFusion generated exception and replace the content by soap XML. A sample is described here: http://laksmatee.blogspot.nl/2014/02/half-baked-soap-support-in-coldfusion-9.html