I am in the market for a 48 or 52 walk behind. I am currently running Ferris mowers, and really like the '07s, but have the opportunity to purchase a leftover 2005 Gravely Pro G 1548 New for $2500, and it is from a good dealer and source for parts and service. The deal sounds good, but from what I've read I dont know if it will work for me. It wont be my primary mower, I have a Ferris IS2000 ZTR, and a 36" hydro. The new mower will need to hold some pretty good hills (gone for some rides on the ZTR... DOWNHILL! ) and pull a velke, sulky or proslide. I dont know if 15hp is enough, and I'm not sure of the belt drive, even if it is a double belt. I have landed some pretty large commercial accounts, and I'm getting sick of walking on the smaller parcels with the 36. Also, the controls on the Ferris 36 suck! Any help is appreciated. Thanks.