I had one in the mini-PSK but after my backpack was stolen I decided to not go and purchase a new PSK plus kit (just the standard PSK). I've already got a bunch of other stuff that I prefer to have - like a P-squirt tool and some coin-cell LED lights. The knife on the Squirt is a bit smaller but all the other tools make it far more useful. My mentality is that the mini-PSK is the supplement rather than the main kit and as a more portable backup system.