I've just been reading an SOTW thread on Benz Reeds. The following is a post from said discussion:
Default Re: Benz Reeds
"I just tried the Benz Alto reeds in 2.5 power 3.0 power and 3.0 comfort. I bought them from the Woodwind music store. This purchase was the supreme disapointment of my reed life. The box is not properly sealed with plastic wrap. When I took out the first two reeds out to see how they looked it was unbeleiveable. The finishing on these reeds is the worst I have ever seen. One reed was cut off on the side upper tip so much that it could not be used. One reed had the shiny part of the cane all the way down to the tip of the reed. Needless to say those reeds did not play at all. At five bucks a reed thats hard to swallow. I found some that looked okay and I tried them. They were okay and nothing special. All of them had some issues with finishing on the tips and the sides of the reeds. I am like many of us looking for the best equipment to express my myself on the horn. I am a realistic. I did not expect all of them to play well. I know that one batch can vary from another. But these reeds or this batch of reeds is not worth it. Advertising hype does not a good reed make. I just wasted $80.00 bucks, which I have done before in buying reeds, but at least I have gotten some satisfaction with a few. Maybe another batch of reeds will be better. Fortunately I bought other brands of reeds in this shipment so I can play. I would have been better off with a nova pack of rico reeds. At least I would have gotten a few good ones. I could not find the number or web info for the benz reeds so I will not be able to let them know of my experience. The website is not interactive. All you find is a brochure. This is my experience and if you like them then God Bless you. But this will be my last time."
It was not that encouraging to be fair, so not that tempted personally.
As you're in Germany, can you found out if AMG do a tuned version?