I was doing my daily watch of the Four Pro’s throwing gif and realized that if I opened the .gif in OS X’s Preview.app I was able to use the arrow keys to move frame by frame. This might be an option for people who don’t have the best video on their cameras but still want to be able to slow down their shots enough to see what they are doing wrong.
In addition, you can skip the video and use burst mode to make your own .gif. If you have an iPhone you can have a friend take a picture of you and hold down the shutter button to take a burst of photos. Use a free app like Gif maker or GifBoom and create a gif of your throw to analyze in preview.
I haven’t tried this out yet with my own throw analysis but I will this weekend.
Here is a short screencast I put together showing Preview + .gif in action.