I am very frustrated on Leica's FBK support stance for Non-1200 and Non-Viva users. In my case, I am a TPS300, a TPS400, and a Flexline user. I was born to be a Leica user. Unfortunately, Leica somehow classifies non-1200 and non-Viva users as second class customers. Leica should understand that those users largely provided them the reputation it is enjoying today.
I asked Leica regarding this but they insisted that XML is a better venue. I counteracted by insisting that FBK and XML are two different mediums though of same target output. XML provides finished survey output while FBK provides more features not only those that can be addressed in XML but also the capability to perform data reduction analysis. Data reduction work is not present in XML as it is only more of a file protocol.
Leica SurveyOffice, GeoOffice, and FlexOffice do not offer FBK support. This is where my frustation is. This problem prompted me to develop my own utility to automatically generate an FBK from the raw data downloaded from instrument.
They do not even offer clean and comprehensive documentation on Format Manager variables.