I run Razr 2s and I have no problem in the sandy beaches of Florida.
I've never buried them unless I meant to (messing around and spraying massive amounts of sand on a TRX450R.)
I ride mostly beach sand, since it's FL, and I have had no problems. I have great traction, and actually love the fact that I can roost it whenever I want. If you are serious about sand, this tire isn't for you though. This is a great sandy trail, hard pack, loose terrain, rocks, combo tire. NOT DUNE TYPE RIDING. (It can dune, but not as well as a paddle can)
It does great in the general woods area.
And the 6 ply is TOUGH!!! The sidewall is amazing.