D300 battery grip + 14bit fps rate

when you add the battery grip i know the fps increases for 12 bit RAW. can someone pls confirm, does it also lift the 14bit fps rate from the pedestrian 2.5fps to something decent ?
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radar wrote:It doesn't. If you want to get 14-bit at a faster frame rate, you need a D3
Rooz wrote:your suggestion is like taking 1 step forward and 5 steps back.![]()