This may have been addressed here already but I couldn't find aything doing a quick search. Anyway I was having a play with the Yongnuo triggers tonight and I found that my SB800 won't sync properly when using one receiver as a remoterelease and the other on my SB800. The opens and the flash fires but there is no difference in between the flash and non-flash shot. I'm assuming the flash is firing before the opens? If I just use the transmitter in the D300 hotshoe the flash syncs perfectly up to 1/250 every time.
I have tried various settings to no avail.