Hi all.  I just got Doug's kit in the mail, and am relating my initial observations.  Overall I think the kit is excellent, and a culmination of years of experience.  I intend to get several more.
My only minor complaint is with the whistle.  The slim Fox whistle takes very strong blow to sound it.  I compare this to the ACR whistle which is very easy to blow.  The Fox whistle is also larger than the ACR.
Some other quite subjective opinions: 
* a swivel is only needed in fishing with a spinning reel, which a survivor won't have.  The split shot aren't essential either.  Doubling the number of fishing hooks would be more useful.
* In the survival document, medical care is listed at the #1 priority, yet it's the shortest section.
* Is the flash flooding of dry cannons a significant enough concern, for what is probably a temporary survival sitation, that it needs mentioning?
* How does "Your body is approximately 60% water" help the survival novice reading this document? The next sentence "Water is vital for your survival" seems more to the point. I'm assuming space is at a premium on this sheet.
* "drink to excess" What does this mean with regard to water?  Can you quantify this?
* If the survivor follows the signaling instructions, he or she will be flashing the horizon for four hours.  Is this what is intended?
* "abeam your position" is probably not going to be understood by the intended users of this kit.
I hope these are useful comments for discussion.