[Youare]

Sounds like most of your tractor use will be where R1's will give you an advantage. I have only had experience with R1's on two different tractors both with FEL's. Half the time the tractor is in the woods and the rest is spent on dirt roads and occasionally on paved roads.

I friend had a tractor with R4's and found that in snow over 6" they filled up and offered little traction, the same was true for mud. Both my tractors rear tires are loaded which adds weight and traction. On compacted dry ground they leave a slight print. The front tires are lawn killers when making sharp turns the rear tires don't sink in much at all.

I have not seen them but did hear of an R1W which is a wider version that offers a little less ground pressure without sacrificing a great deal of traction.

Randy