It is easy for me to to understand the disappointment here. Gosh can't the maker take a few minutes out of their day to see if what they made really works ? That is why we buy a rifle .As for the reps here in the USA they should be yanking on somebodies chain at Sauer.

“To account nothing of one's self, and to think always kindly and highly of others, this is great and perfect wisdom.”
― Thomas à Kempis, The Imitation of Christ