[...]Again I hawk, but this video was shot completely hand held, with a little support from a bungee cord, from a helicopter traveling at almost 100 mph:
Really nice shots, there. At first read, I imagined you hanging at the end of a bungee cord. Shame about the dust; that sort of thing drives me nuts. Was it between the lens and the UV filter? It appeared to be moving and at first I thought it was the helicopter's shadow—until the shot of the large shadow appeared.
But yeah, definitely an IS endorsement.