I have a D300 and am considering getting an MB-D10 grip for it. I have read other thread (eg, http://www.photo.net/nikon-camera-forum/00QaNC). I am interested in getting the 8 frames per second with the 8 AA batteries. What I couldn't figure out from the existing threads is: when you go for the 8 AA batteries, should/can you have the EN-EL3e in the body or should you run just from the AA's? Thanks, David.