Via https://www.tantrumkitesurf.com/short-lines-acdyThis does no damage or has any effect on the actual flying of the kite (as long as it’s done right), and actually gives you a lot more options to change the configuration of your kite when you are up and riding. I would recommend you to go for at least 7m and 15m cuts, so you’ll be able to fly your kite on 7m lines, 15m lines or full length lines. If you want to go the whole hog I would suggest 5m, 10m and 15m. This will give you a great range to progress through and these are the sizes we’ve had the greatest success with in our physical kitesurf school. Every case if different and your exact needs may depend on what size/type of kite you have…the Viron for example comes with the ability to shorten the lines, because of this and due to the friendly characteristics of this kite you don’t need to cut the lines any more for this kite.
What's your take on this ?