thank you one of the best bumping videos i have seen yet. having heaps of trouble trying to bump a lock even paid a lot of money for keys from bumpkeys U.S. and i am still to find a lock they fit into. i have made a few keys myself but still nothing.i will give it another go now i feel i am a bit better informed. thank you very much, i am in Australia and just want to know if you know of any differences between locks in Australia America, England etc ? Thank you Mick.