You don't see many true tracked cutting machines around here. The mills make sure that loggers can't afford them and it's way out of rubber tire range here. Pulp is about dead here since Louisiana Pacific shut down the hardwood chip mill. Weyerhauser is about 40 minutes away, from my house. It's an OSB plant, they buy soft hardwood too, but we are covered with Oak, Ash, Hickory, Locust, etc. that is worthless now. You are lucky if pulp brings 30 bucks a ton. Noone takes tree length either. Every saw log is worked down to 8, 10, 12, or 16 feet. Most all cutting here is still done with a Husqvarna or a Stihl. That's how I did it 26 years before getting in the A/C. A couple of the mill crews have tracked cutters. Woodgain Inc. , who are actually based in Idaho, has the one I mentioned earlier, and Pack Brothers has one with an intermittent head. They cut Duke Energy Timber so they have been set for years. At one time they ran over 20 skidders on multiple jobs. And Sale Lumber had one but I think its gone. If you do see one though it will usually be a Timberpro because John Woodie is right down the road and he is a dealer. We had a 522 Cat for a while but It was intermittent and I hated that head. I imagine a hot saw would be much better.