i just had a call from jim @ crd...we can finally put this to rest!
jim was heavily involved in the development of what he calls "the ultimate pump" for the rb, some compare it to tomei, jun etc...from this they decided to release a 2010 version which now includes a billet backing plate, the main reason for this is to give it a point of difference from the japanese competitors. he said its like buying a newer version commodore i.e. change the bumpers, headlights etc. simple aesthetic updates to pick up the anti. mechanically, it does not improve the car what so ever which brings me to the next point...he couldn't justify pulling out a 2009 version nitto pump & replacing it with a 2010 as only the headlights have changed so to speak. there is no advantage nor a requirement to run a billet backing plate BUT it sets itself apart from the rest & its another tick in the box, makes sense to me.
100's customers are using the cast backing plate with not 1 failure to date - perfect record!
the pump is competitively priced which also makes it the clear winner!
lastly, the nitto oil pump is MADE IN AUSTRALIA & as jim quotes, "we have some of the best engineers in the world, just look at what else is made here for these cars: gear sets & ecu's"
we even have the best tuner here in australia