Working with this heavy cable is what is hard and tiring. No real carpal tunnel risk, its more likely to get a thumb smashed by a stray hammer blow. I had to use a rubber mallet to get my wire cutters to go through the stuff, no way you can squeeze them hard enough by hand to work. Then the stripping is tricky, its heavy, tough insulation, but you need to be careful not to cut into the fine copper strands underneath. And with the cumbersome length of cable, you don't just twirl it around in your fingers. I made up quite a bit of cable with mine (went through a good part of the 100' I bought), making jumper cables, extensions, etc. I can unplug the winch and plug in a set of jumper cables without opening the hood and also have a plug at the back of the truck for the same purpose.