Dunno what timing u using but everyone there including people I know to be reputable had him at 43.5 - 43.7
I have another vid and I get him at 43.4 myself so dunno how u add that second. Maybe u dunno how to time 4x400 splits.
Well I timed the split form what I thought was the 300m line(only option since his hand-off is not seen), but it is hard to tell from that video and then added back a decent first 100m split. Anyways after I made my post I timed the guy that beat Bolt, whose hand off can be seen clearly and got his in 46.3. Considering the amount of distance that Bolt made up on him he had to split in the 43's. So I retract my statement.
P.S. I could time a 400m split quite well. Ain't rocket science
P.S. Would like to see the vid u have where his hand-off is visible. Not that I don't believe u...