The rigid mount + hinge + link arm does little about making the bars feel lights (the energy that is spent is accelerating the mass back and forth, that does not change with a hinge mounted light setup). My understanding is the hinge mount was designed to take the weight of the steering head bearings and help prevent fork damage in a crash (the link is designed to yield).
Godwinmt - If you stand a lot when you are riding you might find that the roadbook and the rest are at a little too steep of an angle. That looks like a really nice design. Well done.
I love the helmet mounted lights, but they are terrible in the dust. They are great for pointing into the corners.
Don't get me wrong, I love rigid mounted lights, but they require a lot more hardware to get them mounted. The fork mounted setups are a nice compromise.