Good innovation, how ever in my experience the closer you can keep the light to the helmet the less likely it is going to get hung up on everything. Personally I use a LED light as it cuts the smoke well and the having to not replace battery's as much is great. My one helmet has a metal generic bracket that I have a BrightStar Razor in. I have bent the bracket to hold the light tight to the helmet. My other lid has a BlackJack Light holder with a Surefire G2.
You don't want to have your head caught up on wires, drop tile supports, and all that other crap that always managed to catch on everything. Helmet light snags was one of the most common hangups we had when we had our tunnel drill.
**Tunnel Drill is a black plastic sewer pipe the we attached hanging wires from the top to simulate a confined space or collapsed ceiling.