I think I've got the triple extension down, but I did notice on several of these, the PVC drifted away from my body, especially the first few. But later on they got better. Any other thoughts?

http://www.angelfire.com/blog/brian_d/100_0091.MOV
And since I don't want to make another thread, can someone tell me if I am correct in saying my vertical jump is between 25" and 27"? I found that using a video camera is a much better judge for testing verts.

http://www.angelfire.com/blog/brian_d/100_0093.MOV
If you're wondering how to do the math for this, you take my height in inches (67.5" with shoes), divide by the height of me in the video (I got 3.25"), take the answer (20.77), and multiply it by the heights of my jumps. I'm not sure if I did everything correct so I would like a second opinion.