Thanks Bullot and Inna. Yep, I always doubt the notion of X% difference in something that is qualitative, not quantitative. If that 1% is, say, an opaque bass or ringing midrange, that could make the component totally unacceptable, and suddenly 1% is 100%. I think what is meant is that 2 things have a similar sound signature, but that is only the beginning.
Of course, those Mogamis sound interesting from someone who knows the Stealth magic, so thanks for the tip Bullot.