Hello All- This is my first post and I'm new to the lawn care business. I'm in the erosion control and earth moving business and after a request by a client I am now maintaining (re: mowing and clearing) undeveloped and unimproved lots. Im in the wonderful city of San Antonio and most undeveloped lots are full of rocks ranging from pebbles to Volkswagen sized. Im curious about what mower type is best suited for this type of job. Some background info- Started with a Husky push mower a POS craftsman 46" tractor, and a Stihl brushcutter/trimmer. The Stihl works great, no problems there. Ruined the tractor in 2 weeks and returned it. Bought a Gravely 1336 Pro with sulky and thats what Im using now. Is this what I should be using? The 4" deck height is sufficient and it does a good job, but is there a better method to get the job done faster. Thanks in advance for any input.