When I am Teaching outdoors I use Hudl Technique on my I-Pad. It is a Free motion capturing app and is used in a lot of other sports as well. I have had great success with it and minimal issues. Your customer just has to sign up for the app and they can receive and watch their videos whenever they want.
When I am Teaching indoors I am currently using GASPLabs, since Hudl Technique is an app it is not compatible with my high speed cameras and desk top. With GASP I save the video and then send to students via Dropbox.