Smooth hydros are a big plus toward lessening damage to turf, but it's all about the 1500 lbs being pivoted on a nice fat wide tire like it were a hinge. Something has got to give and it's not usually the tire. If the tire is turning, even slowly, it is no longer the pivot.
I pivot when ever possible in the street, on the driveway, or side walk. Be careful on concrete as it will sometimes leave rubber marks which are not pretty either.
New verses old tires make a huge difference as well. I try to run mine till there completely worn out. It's rare that worn tires effect the abilities of the mower. I hate new tires. I have to be much more carfull
Last trick. Most yards I cut in four different patterns, a different pattern each week. There are some properties that this is not possible due to the layout or size. Just do as many as possible. I like to use the house, a fountain, pond or what ever is the main attraction of the property as my guide and mow perpendicular and parallel to it. Then go to 45s either direction. Usually it's the house that I use. This makes the house the focal point or sort of puts it at the center to display it. Usually if they can afford to pay to have their yard mowed then they take some pride in their home. Subconsciously they like their house to be shown off. The different patterns lessen the possibility of rutting or the grass laying down in these areas over the season. It also means less chance of pivoting at the exact same spot each time you mow. To take it another step further. When you come around in the month and repeat a pattern already done three patterns back, don't use the same stripe/path. Instead mow half a stripe over, so you're straddling the previous wheel path. Plus it's better for the grass to be cut in different directions. It makes the yard look more uniform and the best part....it just looks cool. Once you do it long enough it becomes habit and IMO you will get more efficient than mowing more willy-nilly. You'll find nice stripes are the next level and what gets you word of mouth recommendations. It also takes a little of the focus off little problem areas. Your now a professional!! GO MOW YARDS!!!