i loved my iroks in soft snow when they where new but now that the lugs are rounded off there not doing as good at gripping some of the harder packed stuff but they still do great in the soft stuff, my old cut sx's did realy good on hard packed and ice and almost as good as the iroks in the powder a friend of mine is running cut and studded 35x16x15 boggers and they seem to hook up realy good but they dont float as good in the powder and the lateral traction isnt very good, and the pitbull rockers seem to do pritty good in most snow conditions as well especialy the powder from what ive seen, id stick with an irok or a tsl sx but thats me