I'm starting break in tommorow on a XXL3. As usual I disassembled the engine to check for debris, flashing on the ports, bearings fully seated etc...
This is the fifth Max Power I have had my hands on and they have all been operating room clean. The only thing I have found was a single eye brow hair from a red head wedged in the flang area of the back plate in my XL9. Im not sure if he is tumbling the sleeve's in some sort of media but they are perfect. Let ya'll know how the bench goes...