A few years ago we scalped O-a-n-d-a for about 2 months before they stopped us but we took over $100k in profits before they did. We did this at many different brokers but all stopped us right away except O-a-n-d-a. We noticed that shortly after O-a-n-d-a shut us down, their datafeed go much quicker. We cost them a lot of money.
How long did the scalps last, on average? Are we talking seconds here or minutes?