Hi Lav
You may be right about limitations, given everything has limits. Nevertheless, it is my understanding that the FBR tech operates from the front of the property or road/nature-strip via an adjustable hydraulic arm (similar to a crane), which is directed by satellite. So this tech seems to solve the problem of access. Given you are in the industry I'd appreciate it if you would go to the FBR forum for a look see and give us your expert opinion. Think they have film of the tech in operation and some of the posters (some builders and brickies) might be helpful.