In reply to iccy:
Rather than dropping the money on a new head-torch, have you considered buying something like this?
https://www.amazon.co.uk/gp/product/B01GV7JV7S/ref=oh_aui_detailpage_o07_s0...
I got one to attach to a running jacket in winter use but I also sometimes attach it to a torch headband when someone's following. The light is at least as bright as the red mode on the newer model of the BD storm and it turns on at the light mode you last used (e.g. straight to red). The light is weatherproof and clips on quite securely (I run like a drunken mammoth and haven't had any problems).
I'm the last person to suggest you shouldn't buy another torch but thought this could be a cheap and pragmatic alternative for you, as well as offering some flexibility for alternative use. As you have some decent sounding lights, it might be worth a thought. They're more expensive than once they were, but twenty minutes sifting through reviews should find you something cheaper and just as serviceable.