the handlebar mount is quite excellent actually....
sorry i don't have a better picture, but this wil explain enough...
as you can see, you have the ring that goes around the handlebars and then you have a large screw sticking out towards the back.
if you flip the camera itself, 180° around and remove the mount from your pole or steering weel, you can hold the mount in your hand and put your right indexfinger on top of that screw like a triggerfinger, so you hold the arm+ mount like a gungrip and the camera on top; this is a very usefull grip, even with gloves it works excellent; and if you want faceshots, you can flip the cam around :)
if it's not clear what i mean, i'll try and upload pictures upon request ....