anything mounted to the frame is going to have vibes... though that adhesive mount on the master cylinder looks pretty good.
Obvious ones i have had luck with is the side of the helmet with camera faced upside down.
Also had some GREAT luck with mounting the camera on a hard part of the suspension... IE LOWER fork legs, and as close the the axle on the rear swing arm. You would think you would get tons of vibes from the road... but its not nearly as bad as the vibes you get from the motor.
I wanna get a hero 3 black... i have the hero 2 but the new hero 3 black looks BITCHIN.