I forgot I had dvr'd a segment about Kittinger's jump a few months ago. When his balloon was at 50,000 feet his right hand glove had a puncture and started to leak. He knew blood would start to back up there, but he went on anyways. In the end it was no problem.
Also after jumping out he was looking at the ground at first with no sense of speed, like he was floating in space. Then he turned around and saw the balloon going away at incredible speed. In fact he was the one falling at the speed of sound.
It took him 15 minutes to get from 103,000 feet to the ground. By the way, he is 84 and still around.