Just out of curiosity, is it possible to use the SB-800 (or 600) remotely in FP high sync mode with a D300? I tried it using the built-in flash on my D300 but when I set the Custom Setting E1 flash-sync to 1/320 (Auto FP) I couldn't get a shutter over 1/320 unless I connect the SC-17 sync cord (yes I made sure Custom E3 was set to commander and that the SB-800 was in remote mode and that I had the Channel and Group set correctly both on camera and flash)... I sometimes find that the cord gets in the way and it would be nice to simply leave it in my bag when I have my flash mounted on a bracket.