I have not seen anyone discuss this to date. But we have a problem with builders running vinal siding down very close to the ground. One bobble with the trimmer and it's toast. The corner pieces almost touch the ground. Even I slip and tag them once in a while and helpers, fugetaboutut. We picked up a duplex late spring. Side A calls and says mower busted siding. I have mowed every time. Don't think so and it's too high for trimmer. So 3 weeks later side B writes letter in payment. She has been talking to side A and does inspection of her siding. Sure enough the bottom of the corner piece about 3" from ground has trimmer damage. (we probably did it) This little **** job is driving me crazy. I have thought about putting a disclamer in quote about vinal siding and some sort of inch measurment from the ground. I suppose a quote will need to include digital pictures of previeous damage. Vinal siding is garbage and you should see it after a hail storm.