"Redirects" using D.RT (Double Rope Technique) or MRS (Moving Rope System) refer to the practice of moving your rope's anchor point higher up in a tree while you are still in it. This is a fundamental skill for arborists and recreational tree climbers. Here's a breakdown of the concepts: D.RT and MRS Explained * D.RT (Double Rope Technique): This is an older term that is largely considered obsolete or has different meanings to different groups. It generally refers to a system where a single rope is "doubled" over a branch, with both ends reaching the ground. The climber uses a friction hitch or mechanical device to ascend and descend on this two-strand system. * MRS (Moving Rope System): This is the current and preferred term for the technique previously called D.RT. It clearly describes the fundamental principle: the rope moves over the anchor point (the branch or "crotch") as the climber moves up or down. The Redirect Concept When climbing a tree, you start with your climbing rope anchored to a solid point, often the lowest main branch. As you ascend, you eventually reach the level of your anchor point. To continue climbing higher into the tree, you need to "redirect" your rope to a new, higher anchor point. This is crucial for safety and efficiency. How Redirects Work The specific method for a redirect can vary, but the general principle is the same: * Establish a New Anchor: While still secured to your original climbing line, you use a second, shorter line (like a lanyard) to temporarily secure yourself to a new, higher branch. * Reposition Your Main Line: Once you're safely secured, you can manipulate your main climbing line. You untie it from your harness and throw it over the new, higher anchor point. * Reconnect and Continue: You then re-tie or re-attach your main climbing line to your harness, remove your temporary lanyard, and you are now ready to continue climbing higher on your newly redirected rope. Why Use Redirects with MRS? * Increased Access: Redirects allow you to climb to the very top of a tree, or to access different sections of the canopy.