I have a retention pond at a supermarket that I have to cut 3-4 times a year. The sides are pretty steep and and ground is very bumpy. At the bottom it has about 3feet of water always. Last time we did the whole thing with string trimmers. This thing is about the size of a football field. It has a wrought iron fence around it with a gate. I can get scags in but afraid of losing them. Equipment I own is 2 scag ztr's and 36" toro walkbehind. Does anyone have any ideas what the quickest way to cut this thing. Last time I charged the guy 500.00 and it took two guys all day with string trimmers. Thanks for any help.