I just purchased a used Walker diesel 1994 model. I wanted to compare it to my toro z-master mid mount. In the fall I was using the walker and found it was not good for traction at all. Even the slightest slopes I would spin. The ground was rather damp all of fall in my area and I am not used to the machine yet. Anyway, I was thinking of purchasing low profile tires, rims, and adding fluid to wheels. Is this a good idea of should I keep the original more narrow tires and just add fluid to them? Do any more experienced walker owners have advice? I love the way the mower cuts and trims. Thanks for your help.