[Closed] What helmet for helmet cam use?

I currently have a Giro Xen helmet and find that the outer shell moves quite a lot when my helmet cam is fitted to it (Go Pro Helmet Hero camera) so have started to fit it to the frame. But this gives some shaky footage too especially on rough terrain where I think it would be better on a different helmet. I don't want a "pisspot" type but here must be something else out there that doesn't allow the shell to move around on the inner fixing system quite so much.