A few blogs ago I wrote a quick review of the Jetboil Personal Cooking System. Well, I have used it a bit more and now have more to say about it!
I used it a couple of weekends ago whilst camping out in the woods - the weather was essentially dry but cold so first thing in the morning it was a bit damp. On the first morning I had left the Jetboil in the tent's porch overnight and the electronic ignition would not work! It lit with a match and then sparked OK after that. OK, thought I, must be the damp so I'll leave it in the tent with me overnight.
This I duly did. Next morning, tried the ignition and same thing happened. Once it had been used it would spark like a good 'un. So my conclusion is that it is susceptible to the damp. This in it's own right is not a problem as long as you are aware of it so you can keep another ignition source with you. Otherwise relying on its own ignitiion could make for some tealess times!