its designed to work for all cams, so i can put my camcorder in there and it wont stick out. with my gopro i took the 3-way mount and straightened it so the gopro sticks out further.
it obviously isnt as stable as a glidecam, but is far better than just holding the cam. its super easy to grab the side handles and do some jump follows, or grab the top and get some skater shots on rails.
for anyone mounting a gopro on a pole for follow cams, remember to mount it upside down and flip the cameras recording. this way the camera wont want to fall over in your hand.