thanx for the replies guys...230.43(15)specifies that a equipment bonding jumper is to be routed with the LFMC or FMC enclosing service entrance conductors...which is allowed either inside or outside the raceway.

With this bonding jumper installed it will provide a properly sized parallel path for the neutral current to flow if the grounded conductor is interrupted for whatever reason.This bonding jumper is required because we do not want the metal of the LMFC or FMC to carry this stray current.

So with this properly installed bonding jumper...which is continuous either outside or inside the flex...I must also bond the associated LFMC or FMC and fittings again...which would provide a third path for stray current.

Do I got this right?

(I know I could just put in LFNC and forget the bonding, but I want to understand the correct bonding method for the above)

shortcircuit