This Fuuga has an interesting story. Bought new with a Sperling turntable and arm. After setup, the cartridge did not track a couple of records quite right so it was returned under warranty. In the meantime, the owner bought an Atlas. When the Fuuga was returned, it was tested for tracking. It passed the test and then put back in the box. The owner wasn't told if this was a completely new unit or his cart repaired. I installed it in my system to verify its performance. It sounds just like the other Fuugas I have heard and tracked everything I played just fine. The original owner was not sure of the exact hours he put on but was sure it was very low. I put four hours on it. I can say for sure it is not even run-in yet. Please call or write with any questions.