"I have did this on Ninjatrader some years ago. "
Knowing Harris Brumfield and Gennady Gertsman personally, and having traded against Paul Rotter in Liffe and Eurex, let me assure you that you did not do anything remotely similar on Ninjatrader. Just 'running orders' is a silly fallacy. These traders are essentially making multiple markets simultaneously based upon inter and intra market relationships.
"Some articles claimed that Rotter would also show large size in related markets to get the pit traders on the wrong side and then he'd reverse on them."
This is closer to the truth, but it had nothing to do with pit traders. It did, however, have everything to do with related markets. Completely. And because most idiot electronic scalpers in the interest rate markets paid no attention to yield curve spread relationships they were sheep led to slaughter.
And I know for a fact that Harris and Gennady are excellent spread traders. And Rotter used spread relationships to scalp quite effectively - a fact that was lost on the local scalpers thinking he was 'flipping' just on them. He was, in fact, opening and closing spread legs. And just like Gennady and Harris, he would often just close an open unhedged spread leg for a scalping profit.
The crap that gets posted is amazing. Read a couple articles, jack around with a thousand bucks on a retail punter platform, and that makes one a supreme subject matter expert I suppose.
