I've read about this rest somewhere online (the website escapes me) and I just saw it advertised in the Cabelas archery catalog (I think its called the air rest). Anyway the idea is that there are three strong magnets located in the rest and a magnet of the opposite polarity is located in the arrow insert. The idea seems sound and the engineer in me is intreged in trying it out but I'm wondering if anyone out there has tried it out? I can think of a thousand ways whoever makes the thing can screw it up