After removing the Gußreste a gear (the slow turning a small resistance was palpable) and anyway necessary fine adjustment of the two adjusting screw kits to the correct card thickness (so that only one card is getting ejected) does the device properly - but only when turned clockwise is as described in the manual. The criticism of the other reviewers I can, apart from the not optimal processed gears not understand. I do not know how to mix cards better and especially more convenient. Therefore, the ASA Card Shuffler Vario is highly recommended in my opinion.