At Dreynschlag, we have been experimenting with using sharp blades for technical exercises and slow sparring. To better understand how the live blade behaves in a variety of situations, we have also added cutting tests (linen & wool covered soaked tatami). Training with sharp swords has lead us to many insights regardig the viability of popular interpretations of many techniques. It has also helped us achieve a much better understanding of the bind mechanics, of Fühlen etc. In this lecture, we would like to share, compare and discuss our experiences with the community.