Hey, I found 2 cents in my pocket this morning, and I don't want them to burn a hole, so here is something I have not heard mentioned. You can buy a Hans device, either the standard or the lightweight Pro model, and it comes with standard tethers. If I am not mistaken, with the standard tethers, you have to slip the tether rings off the helmet posts to release the Hans from the helmet. For an additional $105.00 you can order the 'Quick Disconnect Tether Set' that allows a driver (or emergency worker) to disconnect the Hans from the helmet by pulling TWO straps. Not to draw too many conclusions, but it looks like the manufacturer saw a need to detach the device more quickly than the original design. Can anyone comment on the difference in design from actual usage?