Bond or not to bond (twice)

[Charlypt]

I have an outdoor installation: a service disconnect that feeds a step down transformer that feeds an MCB panel.

250.30(A)(1)
Exception No. 2: If a building or structure is supplied by a feeder from an outdoor separately derived system, a system bonding jumper at both the source and the first disconnecting means shall be permitted if doing so does not establish a parallel path for the grounded conductor. If a grounded conductor is used in this manner, it shall not be smaller than the size specified for the system bonding jumper but shall not be required to be larger than the ungrounded conductor(s). For the purposes of this exception, connection through the earth shall not be considered as providing a parallel path.

Does this mean I can bond the neutral at the transformer (source) and at the panel (first disconnection means) if I wanted to?
If this is correct, this blows my mind. It's the opposite of what I always thought, although you can still do single-point bonding, of course.

 

[roger]

As the exception states, it is allowed if there is no parallel neutral path

 

[LarryFine]

Earth alone is not considered to be a parallel conductive pathway.