My apologies.
I thought I had replied to your above post and have just noticed that I have not.
I am not sure if you are familiar with
Lishi tools.
They have a couple different styles, some that will pick the lock and then let you decode the key and some that let you decode the key with out having to pick the lock.
I have been wanting to get my hands one some, but they are currently out of my price range.
Then there is the art of
Impressioning
Impressioning is a
non-destructive,
covert method of creating a working
key for a
lock without picking or disassembly. Impressioning is one of the most useful skills in
locksmithing, and is divided between copying and manipulation techniques. Copying focuses on making negative-image molds of a source key, while manipulation uses various techniques to determine the proper heights of internal components. Impressioning via manipulation is closely related to
decoding.
My wife got me a
Replicant for our anniversary and I have been having a blast with it.
It is a
Key-based Impressioning technique that requires you already have the key.
Manipulation-based Impressioning is much more complex but also fun.
Though it requires a lot more patience that key-based.
And I mean a lot more patience.