Very good presentation but I wish they had included my favorite, The Cannon.
Watched quite a few of the videos you've made yourself and which are much better in my opinion - you're certainly an inventor, and some of your original designs should really be on the market (after patenting, and rigorous testing to ensure compliance with legal safety requirements, and/or to avoid possible litigation in certain countries). A book about your work, with detailed (patented) technical descriptions and images, would probably become a best-seller - may people are totally unaware of the potential of slingshots.In my view there are two major technical issues that need to be solved: developing a rapid attachment method for therabands on hand-held slingshots (fork and pouch)instead of the "constrictor" knot (OK on the whole), and finding a way of reducing the manifest sensitivity of rubber to temperature variations you have ascertained i.e. developing some kind of rubber-based compound while maintaining full elasticity - something a chemist interested in slingshots may be able to do.Either way, excellent work, Joerg, keep it up.
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