[AT] Tractor tire chains

[Len Rugen]

Not that they will do any good in today's snow, but I've decided it's 
time to get some tire chains for my tractor.  I can usually push snow 
OK, unless it's really deep or has ice under it.  Now it looks it's 
going to be really deep AND have ice under it.

I'm wondering whether the double ring or duo-grip would be better.  I 
have no pavement, just gravel.  I park on concrete, but I can put 
plywood under the tractor there.  Besides the snow, I sometimes have 
trouble in the woods getting firewood out.  The double ring looks really 
aggressive, but I wonder if I catch a rock or stump if I'd break out 
cross links.

Double ring is $205, duo-grip $241, of course there are even more 
expensive options....

Any suggestions?

Thanks