We've also heard nothing but raving on the Bit One over the years. Since we are not a Hertz/Audison dealer (yet), none of us have ever really installed or tuned one here. But, my new sales manager that I just brought on came from a shop that moved a good amount of the Hertz/Audison stuff. He has some insight on it but started after we installed that first MS-8. So, we really have not had a chance to compare (yet)...