Right ok, this is the score,
Lock decodeing is a discussion for the advanced forums and always has been.
What you ask however is somthing slightly differant to what we would normally think of as lock decodeing,
Mention lock decodeing and its normally of a closed lock so you can get it open, what you want is to generate a key to an opened lock, this is differant and ill explain why before i give you some info,
A picked lock has been picked, there remains no further breach of security unless the objective is to determine a master key biting, if the key is used the pins can not be measured as the key is still in the keyway so the lock must be picked,
Due to this im gogin to alow this thread for time being, if another mod or admin think otherwise dont feel your treading on toes and simply lock it up this is just my decision here and now as the thread stands here and now, if it gets to decodeing locked locks it will be locked up,
I back this decison up with a couple of threads ive just found by a quick search (search you noob

seriously have a search for the other threads theres not many and they are worth reading

),
So now on to my advice, info whatever and i suggest this is maybe the top and bottom of it as i will try to cover most things we would allow,
Firstly i can not reccomend any greater to simply have a look around the tool salers websites and gab some ideas, most tools are for locked vehicle locks but the ideas can often be transposed, check out the newsparkling site for a rough idea then have a look around multipick etc,
You will see a couple of things that look good from a tool that actually draws the working key on a sticker as you pull it out the lock, this sticker then gets stuck to a blank so you can cut it out correctly, tools that contact the wafers of pins with wires that can be measured are the common one and there are other more advanced tools that John Falle makes which we cant go into here,
The draw back of all these is that they are intended for locked locks and on an open lock wouldnt work,
It wouldnt work because of course a tool will slide past pins in a lock if they can move freely, jam those pins as in a picked lock and you now cant get the tool to slide in the keyway, this reders all but the simplest methods of reading useless,
If you want to decode a picked lock the easiest way would be simply to familerise yourself with it intimately, get the space and depths and learn them, get a plug if you can loaded with one of each pin and then a bag of the other heights to try if more than the number of pins the lock takes,
Now with practice you should be abe to tel by useing a hook pick how high that pin is, this can then be roughly cut to a key and then impression it down or you can cut a key to code and simply move down a cut each try as its likely all the stacks are off than just one,
There are other home made tools that ive not seen commercially but again maybe for the advanced forums, personally in the past ive made wire tools that act like the sputnik tool you should search the net for (we do not allow the discussion of sputniks in the open forums) but you need to find the correct wire and way of doing it or else you end up with a varying measurement as the wire bends, in the advanced section there is a thread a member has made on his own version of his and its been a great project but i wont mention his name here as he may not want to discuss it,
Other methods are coloured pins in the locks often give away the code,
So a rough basic post of hot air really, now ive typed it out its maybe not for the open forums after all but ill stand by what ive said as a picked lock decode is differant to a locked lock decode and also the lock is already picked open so isnt so much of a security issue, a open lock that allows you to remove the key resets the pins so again useless decodeing it with an open lock decoder,
Hope this helps in some way, no there arent many if any at the moment picked lock decoders but it can be done and also many of the locked lock decoders can be re-designed to work on an open lock,
Have fun with one of my favorite subjects, lock decodeing
