I purchased a BX1850 from Emerich Sales in N.Y. last fall. I went with an 1850 because I only wanted the 48" deck, this one was available with it, and it has turf tires. I have a couple of steep hills to mow and there are no problems with traction ( although I was only able to put 4 hours on it since I've had it). The advantage for me was that it came without the joystick components and that saved some bucks. I have an L3010 with loader, and snow blade so I have no need for the controls on this machine. If you have to order one anyway, and you already have a TN75, why not save yourself some money and order it without the joystick control?