I realised another thing I like about the helmet mounted lights is that it helps alert people behind you if you are intending to move lanes, as the over-shoulder glance means there's a light which moves too.
It seems my AyUp lights are supposed to come off in a collision as they are only mounted with small velcro pads.... still on the fence here. I suspect the helmet mounted lights might reduce my chance of a collision worsen the outcome of any collision I am in.
I'm a non-lycra wearing potterer so no issues there
