Thought I would say howdy. Been following the work/play of Herr Sprave for a while now on YouTube. Being something of a mad inventor myself I am encouraged to make some sling shots and know just about nothing. But I never let that stop me. Projectile weapons fascinate me and I have built a few odd catapults, but never considered making a conventional sling shot. I look forward to learning more about them. Thank you for creating this forum.