Its funny reading the posts in this forum, where people state there is an upper tier SHA-256 miner, better than the S9 already mining, prior to being sold.

They never provide any proof.  Sometimes they make claims that pool operators are being asked to alter code.  Once again NOT PROOF!

Sniff, sniff.  I smell FUD.

http://news.8btc.com/bitmain-order-manufactured-by-tsmc-nanjing-fab-volume-production-in-may