OK so I ended up with a ZebraLight H31.
H31
It weighs 2.9 oz (with battery).
The headband set-up seemed a little excessive to me so I made my own and brought the weight down to 1.9 oz. At that weight I don't see how you can beat it. It has a setting for everything I do - all the way from very dim to super bright.
I'll try to post a pic of the mod that I did.
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i really don't think that applies to me.