Also on doing DD. I was wondering if you had contacted any dealers selling AERO. For example, One could pick an area code..say 90210...a well known one, and then call the dealers that come up in that area - say 70 dealers & ask if they sell AERO and inquire if other people are buying them to discretely approximate how many AERO mufflers are being sold. It's just an idea...wondering if you had done something like that?