I tested the next lazer and the turf tiger recently. When testing the lazer I first played around with it on the concrete driveway to get used to the feel of the controls. In doing so I noticed that it left no tracks on the drive, even when doing 360 spins. Later, when testing the turf tiger I did the same thing, but this time noticed it was leaving black rubber tracks all over the place. I first simply attributed it to a different tire, with a different grade of rubber. But I'm starting to wonder if the machines themselves had something to do with it too. If the design of the new lazer causes it to fight itself less as it turns,,, more flow, less skid. If true, it could have implications about the ease of turf damage avoidance when operating each machine. What do you think? Rubber or machine? Note: I didn't check what tires were on each machine. I didn't think anything about it till I saw the marks the scag was leaving.