I must admit I'm baffled. Not new to flying, but never done augmented. The only reference I could find was that towards required experience during OE only time in seat counted. I would like to see an actual reference that allows 3 SICs to log the entire flight when only 2 SICs (or even 1)would be required for 121 rules. Not trying to be argumentative, just curious. I would have thought the PIC gets to log the whole flight, because he is the captain for the duration, and every one else only logs time in seat. All based on my ignorance in this matter.