we use our zero turn also
in the first picture, that is one of our residential accounts. we usally use our zero turn mower. but today we used our 21 inch mower, don't really know the reason why but we did. and on the pics below that is one of our commercial accounts and there is a lot of debri right now from grinding stumps and pieces of black top were spilled on some parts of the lawn. It's a asphalt plant and they had a huge spill so we have not been able to use our bigger mower.