Iwire,
I agree with your comments on Grounding flexible metallic conduit.
I recieved a nasty electric shock a few years back, from a piece of this that was used on a Hot Water cylinder.
It had been taped at both ends, because the guy couldn't stop the fuse from blowing everytime he switched the cylinder on.
I removed it (after I had re-gathered my composure) and found a large section of bare, blackened Phase wire in the middle of the conduit.
I hate people that don't explain faults properly!.