You gotta be careful with hash in Amsterdam. The low quality stuff is called "soapbar" and I've read horror stories of people melting LP records and other interesting objects and mixing it in to create fake hash bars. I think the term was called a "Pakistani headache" for the effect of smoking melted records...
Pakistani hash was always pretty low-grade. Look for "Temple Ball" hash. Zowee! Of course I just heard that somewhere! I really wouldn't know..........
Not if it's Zeppelin, man.