So we all know that the big three are shelter, sleeping and pack but the idea behind the big four is more confusing, at least for me.
From what I have gathered the 4th "biggest" item so to speak is a sleeping pad. And a lot of the time when we have people asking how to lighten out canned response is to focus on the big 3/4. However I feel that some of the biggest, and easiest weight to give up oftentimes is in the cooking system-oftentimes more then could be lost in a pad. Also I feel that a cooking system can be a great way to introduce those who are interested in UL.
For example:
A lot of people use a MSR whisperlight (11oz + fuel) with a relatively large pot (say ~1lb) which for most people's setups is somewhere in the neighborhood of two pounds. Now I know that a lot of us have cooking setups including cutlery (which I neglected in the "traditional" weight, easily another 1/4 lb) that weigh under 1/2 lb. This gives a potential for 1 3/4 lbs of weight reduction, a significant amount, and one that most will not achieve by changing pads.
Another reason why I believe we should count cooking as part of the "Big 4" when making recommendations to those new to the UL community and idea is because it offers the opportunity to learn really some of the fun parts of UL, and those are making things yourself and experimenting to save both money and weight. It is easy enough to make a pepsi-can stove that I think that many will do it and save themselves the cost of a already made one. Also, however, for those who do not wish to take that route, there are alternatives. Most of these alternatives will allow the new ULer to see one of my favorite parts of UL backpacking-the cottage manufacturers. Whether it be Minibull designs, trail designs or whitebox, they will get to see what we are all about.
Another thing though: We could always make the sleeping pad part of the "sleeping system". I feel that the big 3 should be broken down to three separate and distinct systems: Shelter (tarp, stakes, guylines et al), Sleeping (bag and pad) and Packing (pack and liner). This would leave room for the logical fourth to be cooking.
So I guess what I am trying to say is this: why not instead of focusing on the "Big three" for those new to UL, we focus on the "Big 4 Systems"? Another potentially beneficial effect that this nomenclature could bring about is the immediate focus on systems which I feel many would agree are key to going lightweight.
I feel that we could better help those new to our community lighten up if we implemented the "Big 4 systems" approach as opposed the the "Big 3".




