I have one of the old model SD's that I carry whenever I'm carrying a SAK with a CS. It doesn't see much use for two reasons. First of all the old style SD doesn't fit most eyeglass scewes or some of the other screw's you may run into. If I updated to the new one I'm sure it would work better. When I do need a SD that small I use the Wanger 65mm SD. It's longer and fits a larger range of screws then the older Vic SDs. The biggest pulse the Vic SD for me is with it in place I'm less likely to get a hot spot from the CS on my hand.