Stick on Heavy duty velcro pad from Diy shop on helmet and on waterproof housing.
I like the camera but you sometimes get slight fogging due to condensation on hot days some people have fixed this by drilling small vent holes in the waterproof housing if you don`t put it in water. Or sony do some pads to put inside but I dont know if they work.
I think it sits better on the side and don`t like how the go pro has to mount.
Battery life is about 2hr I carry a spare and swap it if needed.
Loads of vids on U tube is you want to see image quality
Sorry just noticed you said 100 I read it as AS10 but same mounting you just don`t get the buttons on the housing. Mine is the AS15 same as the AS10 but with WiFi.