Cylinder #4 piston seized. As far as why, don't really know. Rings were fine, no issue with the tune, and there was no detonation.
http://i31.photobucket.com/albums/c375/allaboutwrx/26ff90e1.jpg
http://i31.photobucket.com/albums/c375/allaboutwrx/6f1688dd.jpg
Bike ran very solid when I was on it. Never made it to a real track. But out on the street spinning giving another 08 busa the break, I came around him at around 1/8 mile like he was standing still.
Bike's #'s are low key.