AQUAview: Hand Over Hand

At least once a week I hear one of the coaches talk about streamline off the wall keeping those arms tucked in tight and hand over hand.  So for the second time this week here is another picture of swimmers off the blocks.  Notice in this picture the difference in arm position and hands over hands of the three swimmers.

The top swimmers has his hands closed very tight over each other.  The second one has his arms not as tight and it looks like his hands are clasping and not creating a streamline.  The third and bottom swimmer hand his hands over each other but not as tight at the top swimmer.  I am guessing that the correct one is...the top or first swimmer with his hands tight over each other.  That looks like the best streamline of the three.