It's clear that the people at Conrad Götz tried their best to create a product that looks good, but I don't think they tested the product before they decided to go ahead and put it on the market. The thing itself doesn't budge at all, which would be great ......if the end pin didn't slip either. I've tried with two different end pins and both slipped after only about a minute of playing.
I really love the way it feels and looks, so I regret having to write a negative review.