Recently I demo'd a 3066 SuperZ at my house. I am new to this type of machine. As such, I parked it on the lawn a few times while letting the engine idle so I could survey the machine and the cutting we had done. A few days later, we noticed patches of dried out grass that had a very distinct shape. A little bit like a V. Each of these patches, as since died. After thinking things over, I realized the V shaped patches were from the engine's heat blowing down onto the grass. That's an easy problem for me to avoid in the future. My question are: 1) has anyone else observed this problem? 2) has anyone installed a heat shield under the engine to prevent this? 3) did I find a quirk that other ztr users have known about? 4) did I do something all newbees do? Thank you.