Read this thread carefully and draw your own conclusions
http://omegaforums.net/threads/early-polerouter-sub-discussion.3630/
Do you mean that it could simply be a matter of quality control? It seems like more than they would tolerate.
I hope that's what you meant.
Lous, I see your points. What you're saying is that there are so many bad eggs flooding the market, that it's actually not comforting for me to find so many that match the one I'm looking at.