Good idea, but unfortunately the implementation is not quite as perfect. I have other castles of this kind, where I Although the Code can not change, however, will always work. In this model, unfortunately, I have the problem that it's only every third attempt to. It can also be very difficult to turn. That is really tedious .... schwehrgängig 3 times in one direction, once in the other ... and then perhaps again because it just does not like open.