My BOB and GHB have back ups to my pocket EDC. I do not think this is a weight problem, as I can dispose of anything I don't really need in a given situation, to lighten the load. I do believe in redundancy to a reasonable extent.
This encapsulates my philosophy as well. It's easy enough for me to cache or ditch unneeded items to save weight. Additionally, items in my BOB are used for non-disaster, day-to-day "saves" like spare batteries, minor injuries, repairs, and so on.