Thanks for a nice review! I will say, though, that I don't understand the appeal of titanium for a water bottle. Obviously in some applications every ounce counts but a litre of water weighs over 2 lbs alone; it seems the extra few ounces of a stainless bottle over a titanium one would be negligible. Of course, I've not had the chance to use one so I'm just speculating.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman