realskiers

Can't help you, Jim.  But didn't Gary just buy a GoPro with a bra....er, a chest harness, that is...? Is that what you're looking for? You could use it to ski behind Lynn while filming, and then watch on video replay as she becomes a fading speck in the distance, reliving every anxious moment as you attempt the pursuit.....   

Actually, my little Sony digital point-n-shoot takes pretty good video.  And one feature I love is the burst sequence of still images.  Just hold the shutter button, and it bangs off about 5 to 10 shots in a row.  It is adjustable for the number of frames/second, up to about 5 f/s, I think.  It is brilliant as a training tool to catch the different parts of a turn, for instance.  Terryl uses it for her soccer coaching, to capture the motions of a kick, a header, etc..  Brilliant tool for that sort of thing.