@Colan I’m with you on the being a little obsessive about the stuff involved in this hobby, I just bought a nice kitchen scale for example, I don’t really bake haha. I often find discussing gear with people a worrying topic, as you automatically get the ‘well if you spent less time or money on this you could be out doing you hobby more’ or the ‘why do you care about it this much, it’s meant to be fun!’. Zen and the Art of Motorcycle Maintenance has the best take on this, quality is subjective for people and I can’t be out hiking all the time, so I get to engage with it by thinking about cost weight benefits in materials 
Sorry no experience with the alcohol stoves in low temps personally, but I know they issue them as survival gear in the Finland for the military, so I would guess fine. Apparently the big thing is warming the fuel, so keeping it in your jacket before lighting up maybe. I’m not sure I’m going to use my mine much, but I’ve had a lot of fun messing around with making them so far. If I start getting more solo/2pep hikes in maybe, might actually be nice for using on long day hikes as well.
Ah awesome, good advice on bottle over the syringe, though I’m starting to think the thing might not need any backwashing over the average trip anyway, flow rate is slow as is 
Think the big two changes for the foreseeable future are moving my water system over to a Sawyer Micro Squeeze and a CNOC bag as a gravity filter, if I’m handling water for more than myself squeezing is starting to feel like a waste of time. And then when I’m not sharing a tent I’m looking to move to a trek pole setup, and really liking the look of the 3F UL new Lanshan 1 mid. I’m a 6ft stomach sleeper with my arms above my head haha, so that is the first one that seems like it might fit me properly.
Thanks, think I have been mixing my Lighterpack stuff up some, I was using it as a buying reference for an american friend coming down for the Fish, so it is quite likely I stopped paying attention and mixed currencies!