I have been using Cobalt cage for past few months and pretty impressed by the quality. Its rugged and can be easily hooked to multiple suction cups for the rigidity. Although the regular GoPro suction cup can handle the weight of this cage, I would recommend to use a heady duty suction cup like the Manfrotto Pump Cup to be doubly sure.
I have used above setup for our recent Chandratal trip on a road on its best day would be called bumpy and never had any issues. Will post the video soon…
You may also see more images from the trip on FB here.
Location: Spiti, Himachal, India