Dogfish,
Thanks for your post, very interesting...
The patterns you describe are exactly those which have been killing me for the past 6 months. These flippers get into action generally in the morning in a slightly trending market with below average volume.
When not caught by them, I tried to take advantage of the set up. It revealed extremely difficult (at least for me!) as :
*The pulling out of the bids are so fast it is almost impossible to jump on it
* They are not always executed as you mentionned
* It is hard to fade the trade, as the impact of the orders pulling out is difficult to predict (3ticks? 6 ticks?) I am often stopped out
* Sometimes I am amazed to see an obvious "fake bid" being slowly hit without pulling out...
Tx for the tip on the "Lucky fill" that's smart. I didn't think about the fact changing the size by one lot would shove me in the queue.
Here is my Q : How to take advantage of those trades? (apart of staying away

)