Originally Posted by Yorkshiretea
Probably because it is two projectiles and two points of impact
Where's the link to the form, think you only posted the file.
So what you're saying is that you're willing to download a video and step through 30 frames, frame by frame, take still shots, change thresholds, upload the results to the web and post them.... but..... scrolling up 6 posts in this thread is a bit of a stretch for you
( post #16