New Title: OK when complete. Old: transom with too much play and incomplete!

Unfortunately, in my model the crossbar had too much play, so the exact setting of the tilt angle was difficult on the tripod. May also lie with the weight of my setups. Otherwise the Mechnik is smooth.

Addendum a few hours later:
After further consideration of the photos I noticed that in my model, the two small screws are missing, which are clearly visible in the photos. I sold an incomplete model. Therefore, to all potential buyers: Must complete check after receiving the goods. Too bad that I am the first who can forgive only 1 star.

Addendum of 05/10/2015:

Have reappointed me that thing. Now all screws are and you can use it well. The screws are important to the bar to take the game, so that the camera can be adjusted eventually without falling back. For the price of carriage macro is useful for Image Stacking. Therefore, now 3 star.