I made up a video showing 3 angles with both mine and Birds replay file, from my car his car and static tv cams. I have synced these up but as its captured at 30fps there can be sync errors of up to half a frame so I probably should have captured at 60fps to reduce this error by another 50%. This is because capturing all depends on when I press play in game and record in nvidia shadow play, the first video is most out of sync in the capture the other 2 would be quite a bit closer.
In the Video's Birds replay should be top left, mine top right and the video below is both overlay-ed over each other with the top video 50% opaque to show the difference between them with some ghosting of the 2 images. Below are 3 screen grabs at the point of impact to show the difference at this point.
Here is the video which is still uploading and will take another 20 min or so before its done.
[youtube]_L5ResKOl_0[/youtube]