So far so good with the turfs. I have been snowblowing the driveway in 2WD most of the time. I just got the ballast box yesterday, so I haven't had any weight on the back either. I do need to go to MFWD, if going into areas not cleared with the blower yet, most of the time. I also did some FEL work this fall before we put the blower on. It was very mucky and wet, and needed MFWD most of the time, but the turfs bit flawlessly.