My Exmark dealer has a new Exmark steerable sulky sitting around and said he would put in on my 48" hydro unit for me to try. Have any of you guys used this paticular sulky? My concern is using it on slopes. I fear it will slide on me. He says it would work fine because it is steerable but I want to hear what you guys have to say. The cost is $300.00 installed. Regular retail is $600.00-700.00 in the book. Thanks for any help on this.