Tools used:
Bristle tension wrench
Bristle rake pick (cut like a bump key)
Results: Open all my US American 5200s (post 2011 masterlock) in 5 seconds.
I made a custom tension wrench for the US american lock with the master lock (key15) keyway. The tension wrench goes all the way into the plug completely. I made it that way because the cores that master lock makes for these locks have to much play and you really have to go back work the tension wrench. I think having the tension wrench go all the way inside the core helps with opening this 5200's.
(top street bristle tension wrench bottom is the street bristle rake i made)
I made this pick a couple days ago with no success... I always used top of the keyway tension which resulted in the rake pushing the tension wrench out of the lock. When I tried my other tension wrenches none of them fit snug inside and still no really awesome results. I put a street bristle inside the 5200 and it did not move at all when turning. Then I stuck my rake inside and just like a key it opened the US 5200.
(close up of the rake)
