Speed and manuverabilty. There is no substitute for a ZTR if you have the terrain for one. I have mowed with a Kubota BX 60" deck, my Kubota B with a 60" RFM and my Toro 52" Z. There is no comparision in time -what took me 1 1/2 hours with the BX takes me 1 hour with the Z-another piece of property that takes me 3 hours with the B takes me 2 1/4 with the Z.
Will
Will