by Abus » 24 Mar 2008 10:21
Do you have a key for it? If so, cheat and look at the key, and try lifting the pins to duplicate the key. This is easier if, as you say, you can get some of the pins to set, so you can look for comparative heights. I.E. if you know that #3 sets about halfway up, and looking at the key, you can see that #5 is the same cut, try to position it the same.