I always thought that the Nike chip system was pretty gimmicky. Maybe not. Anybody use them?
Two types of lacing systems I've tried and survived but wouldn't buy again: the asymmetric lacing in the Gel Kayano, and the drawstring/tab pull/tuck-in-the-top-of-the-tongue lacing system of the Salomon Pro 3D. They had their advantages but ultimately led to some uncomfortable pressure points.