Gear choice : carabiner – how to use them ?

We always recommend shackles and quicklinks in slackline. When the forces are heavy, we usually don’t use carabiners. However, we are not sure why we don’t use them. Well, it’s because we don’t really know which carabiner is the most appropriate and how to place them correctly. Slacktivity did some tests on carabiners to explain us how to use them wisely.