Effective from 1 August 2014, the conversion factor for dressed (DRE) Southern Blue Whiting (SBW) has been changed from 1.7 to 1.65. The definition of dressed has also been modified to be:

dressed - means in relation to southern blue whiting, the body of a fish from which the head and gut have been removed with:
(i) the anterior cut being a straight line passing forward of the anterior insertion of the first dorsal fin; and
(ii) if the tail has been removed, no part of the tail cut shall be forward of the posterior base of the third dorsal fin.

A letter from MPI explaining the changes is available here