You guys might have already noticed that I do almost all of my slacklining in a slack park we have here in Innsbruck. Usually there are just beginners with 20-30 meter long ones..but sometimes the "pros" come as well and I've noticed they never tighten their slack hard... it's always suuuperloose. That causes it to be so much more unstable and therefore immitates those long 100+ meter long setups. I've tested it on my slack today and woohoo, that was a loot of fun and soo much more challenging. I'll take my camera next time :)