I have a set of R14's (loaded) on a 4 series I haven't had any issues with them yet. Worked fine in the winter on snow and ice, field work no problems (food plot work) but still hard on my lawn, but not as bad as the R4's were. My issues with the lawn has more to do with the weight of the tractor and the soil type (sand/silt) than the tires. I used the tractor last weekend on an established lawn with much better soil an no issues. My last tractor was a 4310 with turf tires (not loaded) and the tires worked well all around, no winter or field work issues and easy on the lawn.