I've been using chains similar to these since the 80's.
they do go on and off nicely.
I think you could mention that one needs to stop with the tire/wheel at
the right position to remove them.
that takes getting in and out a time or two, or a spotter.

On 1/9/2013 12:43 PM, Richard Duvernay wrote:
> Putting aside whether putting on or taking off chains could ever be considered
> anything but a royal pain, Thule CS-10 tire chains are least annoying chains I
>   have ever owned.  They are not cheap but they are designed with a automatic
> tensioner which works great and when it comes time to take them off, you pull a
> ripcord and they fall off your tires like magic.  While others are lying on the
> cold wet ground struggling and swearing, you are in and out of your vehicle in a
> couple of minutes. Check em out.
>
> http://www.youtube.com/watch?v=LW2NCzX5kVI
>