Don- Fixture whips normally don't have any support other than the fittings and the FMC is installed in these cases for the ease of installation and to allow for the repositioning of fixtures if there is an office furniture adjustment etc. In these cases it's not a case of vibration and in Michigan we use an EGC for installation of this sort. Conduit length is not an issue nor is the ampacity of the circuit. I think this is an excellent requirement. Now with the cost of copper, I see this as a shortcut I need to watch for.
