Hockey Pucks under amp?


Anyone tried it? It was suggested by the service center for my ss amp. I am awaiting arrival of my amp, and will try it next week.
blbloom
On the strength of this thread I tried some, but took em back. They're not as good as roller blade wheels.
Remember that hockey pucks should be cryogenically treated (i.e., frozen) before use. This is why the used ones always sound better.
I got some nice heavy tool steel blocks from the tool and die department at work, works great too.