Thanks for the feedback. To answer some questions:
walkinTas wrote:What was the final weight?
297.7g including container (see bottom right of picture).
Moondog55 wrote:Mirror?
I had thought of that but then I read somewhere that signalling mirrors are quite difficult to use properly and not very effective at aiming directly at an aircraft or ground party to attract their attention. I stand to be corrected however. Also, I thought that I could use the mirror which is part of my Suunto MC-2 compass if I had to (but which is not in this kit).
ninjapuppet wrote:Your fire starter is the most essential tool in a survival kit.
I will think about including a lightweight one. I do have one but it is a bit heavy.