I've got SWMotech Hawk light brackets. They fix at three points through the fairing plastics on to metal. There's a rubbery RAM ball bolted to the left hand bracket, a short metal RAM arm attached to that, and a RAM ball at the other end fixed directly to the Gopro frame. I usually shoot in 1080p which allows me to use image stabilisation, but these two clips were shot in 4k which rules out stabilisation - in the Hero 5 Black, at any rate. The Hawk brackets are very solid, act as a kind of tripod, but the 4,500 rpm vibes and "jello" rolling shutter effect are still there. Jello might be mitigated by playing with frame rate / shutter speed. The 4,500 rpm vibe would be cured by purchasing a Suzuki Bandit.