Then IMO, for you I would look at: Kenda Bearclaw HTR, GBC Grim Reapers, ITP mudlite, ITP Teracross and Maxxis Zilla. Stay no more then one size up from the stocks and the same width...and 6-8 plys. I like a radial on the snow and soft stuff because the contact patch is longer then wide at the correct pressure making it perform, ride and handle noticeably better then a bias ply.