I made my decision today, and ordered up a pair of the Vibrant 1794 from Summit Racing. We'll see how they sound, will report back. I talked to a few people elsewhere that had started with the mini bullets and switched to Vibrants with 392 cars, and they kind of confirmed that that blatty sound I was hearing is actually there. I think I will be happy with the Vibrants. If not....hey they are cheap enough to change again!