Jared, don't know about your Kimpro mags but you MIGHT want to think about getting some rubber bumper pads for your GOOD mags. Makes it easier on them when you to a reload and just let them fall to the ground plus helps in making a positive reload (they stick out the bottom some and you don't have to worry about getting your hand caught when you do a quick mag change).
These came with a flush fit stainless bottom and 2 different rubber bumpers (one thick, one thin)