Things, that so far, seem to be true:

• FDS invokes CFCs independently of webservers and virtual hosts
• CFCs therefore require cfmappings
• As do frameworks used in Application.cfc
• Without these mappings, there will be confusing errors, stating the CFC is not found
• ServiceCapture is unable to detect FDS transmissions due to the complexity of proxying such a thing
• There are still silent failures, but there are a number of logging types that can be enabled (and it is then easy to drown in all the noise)
• Always remember , without the <cfproperty> tags, no translation of types will occur