4105 hydro transmission

[Squid]

I am looking at a John Deere 4105. The price is great and appears to have most everything I want, but there a couple of questions that come to mind to help me in the decision making.

What is the difference in performance between the ehydro 3 range and hydro 2 range on the 4105? Is this configuration used on any other tractors? I also see that it does not come with turf tires. Too bad. I noticed it has a rather short wheel base. I am not sure this is a good thing or a bad thing. What are your thoughts?