If I was to do it again I’d score the tube for extra grip- I ended up sticking on a bit of wet and dry paper as the light slipped a wee bit when getting really knocked around. (but, tbh, it took a real shaking to do it, night downhill!)
I like that. Did you just chop the buckle mount a bit and glue it on top?
I was half thinking of chopping the splines off and screwing/gluing the light straight onto a buckle, reckon that would work? Or would I need a booster to keep the flexible buckle bits from pressing on the bottom of the light?