PJ,
FYI, I have a Rubbermaid cart for my Simplicity lawn tractor and I always had the jacknife problem in close maneuvering. With the PT425, I have no problems!?@#$ I can't figure it out, but it works great. I know you are looking at these machines, so just another bonus.
Also, with a car or truck I can back a trailer like a world champion as long as I can see it directly by hanging out the window or looking out the back of the pickup, but if I have to use mirrors I'm quickly "off the drive" and into the grass. The car hauler that I bought is paricularly hard as it is so low to the ground that I have to use my mirrors to watch the right side when using my van as a tow vehicle. I'm getting better at it, but, as others have stated, it takes practice. The weird thing is, I can back up a vehicle with the mirrors perfectly. I play a game in the mornings with the kids. I line up the steering wheel in the first five feet of the driveway and try to back down the rest of the 80' or so with my hands in the air. I can do it 9 out of ten times and they really love it when dad hits the grass. Put a trailer on there, and I'm a true novice /w3tcompact/icons/laugh.gif