I am seriously considering purchasing an Exmark Turf Tracer walk behind, 23HP, 60 inch. I have many residential customers that are willing to pay the extra fees for walk behind service. Does anyone use this machine for residentials? I am trying to get a feel if this machine is TOO big, or should I stick with the Turf Tracer HP, 48 inch. Is the Turf Tracer 60 inch just too big and not as nimble as the Turf Tracer HP, or is it worth the extra few dollar to gain that efficiency (60 inch versus 48 inch deck). Thanks for your opinions.