Finally got the change to try out my FoxFury underground. (Original "Signature", not newer "Performance" model.)
Love the light output, but it's really hard to get it to stay in place on my helmet (Ecrin Roc)... especially since the design only permits the headband to slip under the back two retaining clips (the front two are blocked by the light housing).
Aside from layers of duct tape, is there a better way to keep it in place on my helmet?