I do have a question about the kits:
You said in the water/food group on ETS that: ''For most uses, we prefer the Aqua Blox to the flex-paks, but they do generally cost a bit more.''

If you prefer the Aqua-Blox, then why do you include the flex-packs?
Does it have to do with the price (is there such a difference between them) or the space they take in?

Also I would probably add surgical tubing and a carabiner hook for securing equipment (of courdt you could also use the safety neck lanyards for it)
Still they are the best aviation kits available so far.
Well not available yet, but you know what I mean.... <img src="/images/graemlins/cool.gif" alt="" />