Not sure if this has been covered in previous posts - couldn't find anything. We've been repeatedly told not to use XLR mic cables for linking up DMX lighting fixtures, despite their being electrically the same. But I confess I have often cheated without any problems. What I would like to know is has anyone had experiences which would confirm that swopping cables between audio and lighting, and vice versa, can damage gear or fail during a gig? Also if any of you brainy types has the figures on signal frequency, capacitance, max cable length, current etc in the cable in each application I'd be interested to learn more.