Yes, Jörg and his videos played some part, but I had always just wanted to try it.
I am frequently on www.slingshotforums.com
, lots of good advice and info there. With modern rubber you can likely shoot just as hard with less draw weight. If you like building your own stuff you can download some great templates there. I have built and shoot the "Rocket" by member Hrawk a lot, a great design. You can even find a design I have made myself, the "Bad Company", a hammergrip shooter to be made from 18mm Multiplex boards.