There is really only one projectile motion equation concerning distance. We can’t really make something up and expect it to be better. My point in the previous post was just to point out that when you use the projectile motion equation to determine distance you need to recognize the 3 points noted above. Also, as Mort pointed out, the 10m fly time velocity isn’t even what you’d want to put in to the equation. If you wanted to do it accurately, you’d get the instantaneous velocity at the moment of takeoff (which would be in front of the board).
The horizontal jumps at the trials had markers and data collected over the last 20m at 1000 fps (yes 1000). I am not sure what will come of this video though.
Unfortunately dartfish wouldn’t be able to give you anything accurate. Despite what the dartfish reps try to sell, it’s practically worthless for determining angles, distances and velocities.