Jimmy,
Might as well put my two cents in worth.
Doing pretty much exactly what you will be doing. I have turfs on my machine & am very happy that I went with them. Was originally looking for R4's but tractor came used with turfs. Have approx 550Lbs as ballast on my 3 pt hitch which has made snow / ice traction & FEL work a breeze. I do have to qualify a few things though.
1.) I never go out when it's soft & mucky. Even with turf tires you will still leave ruts....maybe not as deep but ruts just the same.
2.) Don't have any slopes to negotiate at least not during wet or snowy weather.
Therefore, based upon your first post of mud & slopes I would definitely recommend R4's with some kind of ballast. There is a whole other discussion whether you go filled tires or ballast box. Some feel that the fill will eventually corrode the wheels. That's one of the reasons I went with weight on 3 ph. Of course the disadvantage to this is if your constantly changing implements on the back this would become tiresome quite quickly. There are ways around this, i.e. Pats easy change system for one.
Vic