Distance of Fall

As some of you know, I write articles for trade magazines in the field of Arboriculture.  Occasionally I get a question or two on details or asking for clarification.  My last article was published in TCI magazine on the topic of Double Block Rigging.  A bit esoteric for those of you not in the tree world, I admit, but a good question none the less.  A question I get asked fairly often when training.  Instead of trying to scribble my answer in words, I decided to do a short video explaining.