Novice here, working on cutting down some pines that are quite safely away from any structures. I do however run the likely risk of the tops getting caught in the canopy on the way down. I'm working on small to medium sized trees, maybe diameters up to 16" or so, and want a come along to help when something does get stuck. I just don't know what to look for when purchasing one. 2 ton, 5, ton, cable, rope. Basically I just want a casual user level but strong and safe system that will allow me up to about 100 feet of length so I can ensure being safely away. Any information would be appreciated.