Well, I don't have the most sophisticated technique I guess. I've only skidded the ones that were sawed up this go round. But, what I have is a choker cable that I attach to the drawbar. The choker cable is rigged so that when it is pulled on, it just grips tighter. I'll post a picture of the rig with this.
The most important thing, I guess, is to make sure you have a path that is negotiable to and from where the logs are. There were a couple of extremely nice cherry trees I had to pass by this time around because I didn't have a winch to pull them up an embankment that is about, oh, 40 feet or so and there is a gully at the bottom of my bottom land that can't be safely crossed with the tractor.
Other than that, I'd say it was just a matter of making the logs of a size that my tractor would handle. The huge walnut log, for instance, I had to cut into 10-11 foot chunks to make it manageable. Even at that I figure the main trunk portion weighed about 5,000 to 6,000 pounds and I had to clear some underbrush to get to it.
I'll be happy to answer any specific questions if I can.
Steve Wells