Sorry, I know that this has been beaten to death in other threads but I wanted some of y'all's opinions, too. We are looking at getting a XR 4046 and have only had tractors with R1's, dealer is pushing R4's. The tractor will mostly be used for bushhogging and some of the terrain is hilly. There will also be some general farm maintenance type work, too. Any thoughts? I was looking at the photo thread and was moderately surprised with what was able to be done with the R4's. Anyone have any idea which have a higher ply rating or weight rating? Thanks in advance.