This was going to be a private e-mail to Harvey, but I decided to make it an open letter here instaed. I hope you aren't sick of this subject and/or question Harvey. I have been off the 'net for several weeks and I know this has probably been covered before but... I know you recommended the Marshall/MXL/ Mogami 603s as a bargain. I inferred later that some folks thought they got some bad ones. I just bought one, and I got it for $69.00 so no matter what I am not complaining. Here's my question: what, if you know, were the characteristics that people were complaining about in the "bad" ones? I only picked up one, so I can only compare it to other mics in my limited collection. On accoustic guitar, compared to an AT4033, I prefered the AT4033 (well, okay, it cost 4 1/2 times as much). The MXL603s and the SM57 were simply different, with more high end on the 57, but with more body on the 603s. This is not what I expected, but I'm not unhappy at all. Self noise is what promted my question. The 603s and the SM57 were comparable and the 4033 was much quieter. I record mostly (load) rock, so the noise is going to be buried, lost among the memories of accurate-hearing-youth (to my ears at least). Do these observations match your experience, or am I cursed with a "bad" 603. I hope to try it soon on a drum kit (I bought it for an overhead) to take advantage of the expected better transient response. As I stated before. This is a whopping $69.00 investment, so I am happy with a different mic for some difference in tonal nuances no matter what. These mics are now at the SM57 level in price, and since I already have a dozen 57s I wanted to try the Marshall out.