Not quite sure what I’ll be using out of my bag-o-cheap-lights this winter. Got an XML DX light and also an XML torch, and 2 P7 torches, and a 4-battery pack for one of the torches.
The XML’s have an odd light pattern, very bright spot but also a strong wider beam, which actually gives better light everywhere than my P7s but I think might not work quite as well since the wider beam, though bright, seems less bright by contrast with the central spot. The P7s more even, weaker light is easier to ride by at lower speeds but then they lack the throw of the XML.
So I’m thinking probably a P7 torch on the bars and maybe the XML torch as well, and the XML bike light on the helmet. (the XML torch is bulky and a little bit heavy for head use). That’s much more light than I need of course but it’s hard to find a reason not to do it.