You will want the roller fair head with wire rope. Run syn. Rope, lots of advantages, few cons. You can repair rope on trail,( you can actually tie it together) throw it in the cab for the next obstacle, saves weight, exceeds wire rope strength, little to no stored kinetic energy, so on and so on. For what's it's worth, last spring I was out pre-running a trail after a hard rain here in NC we have red clay that will stop you cold gum up all tires. I had to (solo) winch up a hill, the beauty of the rope was I winched up, stopped threw the rope into the pass. window and moved until I couldn't, then redeployed the rope. I must have traveled more then 500 meters(1,500feet) on my own. The fact of using syn. rope and the ease of using it sure offsets the cost.