I did some work on a large oak the other day. Large Co-dominant stems big spread on the canopy. The job was to remove some large overhanging limbs and re-balance the crown. I used two DDRT systems. 1. A VT hitch climber set up on tachyon 2. A Zigzag set up on different coloured tachyon. (And a Petzl Zillon lanyard) The perfect scenario for two rope working. Except.... I could not get a rhythm going to my climbing. This method of climbing is very cumbersome and awkward. There is a lot of extra work involved in managing rope, repeatedly redirecting two 45m rope ends takes considerable energy and hastens the on-set of fatigue (a very real consideration as fatigue plays a part in a lot of accidents) I think there are a myriad of reasons that this method is going to be less safe, even on a job that would apparently lend itself to two rope working. The increase in time cutting with a top handled chainsaw when lactic acid was noticeably present in my muscles was very concerning.. There was a lot of ‘congestion’ of kit attached to my harness. Using both a silky and a top-handle chainsaw, I found it increasingly difficult to use these tools without bringing the sharp edges into contact with the added rope systems. The chainsaw bar and chain in particular kept getting tangled in the trailing ends of the added rope. My ropes got ‘nicked’ a number of times during the climb and seemed to be unavoidable using this method. These are real concerns. If this is the case when working in a large open canopy tree how much worse is this going to get when working in denser canopies and less suitable work situations? This whole thing needs a re-think. It could start with more in-depth training on anchor point selection and how to maintain better work positioning when cutting. The current WAHR principles don’t seem to be the correct way of measuring ARB climbing. To look at enforcing two rope working into the industry in the hope that it will reduce falls from height is one thing, but to do it without looking at the wider implications and other factors and aspects of working from rope in trees seems to be a very blinkered and dogmatic approach. What was true in 2004 is still true today.