I love to let my load build for hours before I let it finally shoot. I love to feel the sperm build, and when I'm finally ready to unload its usually a pretty good blast.
I love to see how much cum I'm going to pump, so I sometimes stand up and let my penis spray all over. I can usually spurt my jizz a foot or so, but if I'm really excited, and I have a big load built, it sometimes spews two or three feet.
The best I ever measured was 5 feet from the head of my penis to the last drop on the floor! Wow was it fun- I had jacked for about 6 hours and counted about 5 spurts as I came.