I am seriously consitering getting a sulky for my 48" Bob-Cat WB mower, belt drive (double wide cogged belts), 15HP Kawasaki V-Twin engine. My knees are giving me trouble (not from mowing directly), and I think that getting a sulky would be a good solution (a Z-turn would be too big and bulky for my properties). Now for the questions; Will a sulky damage the drive system/shorten the life of the transmission dramatically? Will a sulky pop the front end of my mower (deck) up when I go up a small hill? Is the 15HP engine on my Bob-Cat enough? Which brand?, I am consitering Velke single wheel, Velke double wheel, NOT Proslide. At the moment I'm leaning towards the Velke single wheel. Also, I only weigh 135lbs. Thanks in advance.