Id like one of these in a 54in, like say a ZTS2due to my yard slope, and the fact I have to trim around alot. I borrowed brothers ZT2 -50, and while it was ok on slope , hard to trim close to stuff at any speed at all. My question is, how stiff is wheel to turn? My shoulders are getting bad. Is it as stiff as my rider? The rider pulls on the steering wheel quite a bit on rough ground. My shoulders really liked bros lap bar mower. I'm trying to save my shoulders , and cut down how long it takes me to cut 1.5 ac