Hey aznsebass,
I haven't started to sell the antennas yet. I'm hoping to start making some this week. The only antennas that I have made so far have been out of 303 Stainless Steel. They were just some prototypes that I made. I made them out of S.S. only because I did not have a piece of Alum. the size I wanted. I only had some 3" and larger stock and did not want to take the time to turn it all the way down. As for the reception, I can only give U my impressions of what the Stainless Steel does. I would say it gives you about 90% of what the OEM one does. I live 1/2 way between Cleveland and Toledo and if I try to get their stations the signal is a little weaker than the OEM antenna but if I only drive like 10 miles either way they come in good. As for local channels U will not know the difference. I had it on the car when I took a trip to the North Carolina meet and really didn't have a problem with reception. Will let U know on the Alum. antennas once I make one. But good question anyway.