At least you bought an inexpensive helmet in case you start filing.
I tried the flat rubber go pro mount that came with my recorder. Hard trying to find the right position for each ride.
Plus every time I tilted my head forward, I would feel the weight of the camera shift the helmet. Helmet secured well but still the shifting annoyed me.
Then I tried the adhesive mount right at the forehead. Cool shots for snowboarders looking back on your face. But also bothersome.
I do much better just using the handlebar and rear saddle rails mounts for both directions. Though planning a long ride with the rear recorder, I have to make arrangements to carry my tools in another location than the seat pack.
I also prefer the steadiness of the solid mounts vs the turning, sliding forward, backward shaking view of the helmet mounts.
BUT IMO, it is better to get a good aluminum mount. I had my
GoPro fall at 30 MPH down a mountain road because the cheap plastic go pro mount snapped apart for some reason. Could have been that I tightened it too tight but having to do so as the go pro mount did not hold steady unless it was cranked down.
GET A GOOD MOUNT AND USE A TETHER EVEN IF IT IS A POINT AND SHOOT CAMERA STRAP TAKEN FROM ONE LAYING AROUND.
This is an example of my front and rear recorders.