I like the idea. Those 3 squirts however are too similar other than plier, stripper, and scissor main tool. Your Knipex covers pliers so no real need for the S4. The Vagabond covers quite a lot so you might even could loose the S4.If small pliers is a base you'd like covered then the S4 would be the one I'd loose since the Vagabond had scissors.
Yes but what about having a backup? And a backup backup? 3 is 1, 2 is none, and 1 means you owe someone (-1).