To all the posters that clain turf tires are good in snow, you were right. I will eat my words. I've plowed with ag's, R-4's and turfs on the same tractor (NHT1510). BY FAR, turfs are best. Not as much tire slip in reverse as with R-4 tires. But what suprised me was how they gripped on blacktop. Mind you, I was only pushing about 6 inches or so, but NO wheel slip in 2wd on a slight uphill. I have to admit, I was impressed. Now, we just wait for a real snowfall.