Hey,
I bought the SP BMC-12s a month or so ago and I pick up a slight brushing sound in the left channel. For a while I thought it was just something wrong that I was doing since I'm new at this. But then I realized that it's the microphone wire that is picking up the sound... even at the base where it connects to my pre-amp, you can hear sound transmitted through the wire.
The sound pro tech said it's "not uncommon" because it's difficult to separate the mic from the wire. he was confused that only one of the two mics had the problem.
Should I bother exchanging the mics? I'm leaving the country Monday, and it would be inconvenient but still possible to have them shipped abroad. It sucks that I won't be able to walk around and record quiet sounds without the ruffling noise. Maybe there is a quick fix?