Anekdoten, I wanted to add my thanks to the many others you have gotten for starting this thread. I read the first 250 pages but got impatient and skipped to the end. The best thing I've gotten out of this discussion was convincing me to get rid of my indicators, which was about as hard as giving up smoking, but I did it and I'm way better off. All they were doing were confusing me and causing me to hesitate. My sincere thanks for that.
I noticed you started with YM, then switched to ES, NQ and now ER2. I came to the conclusion about 6 months ago that ER2 provided the best profit potential, although the action can be a little hair raising and I got chopped up pretty bad trading ER2. That, combined with it moving to ICE at some point, convinced me to switch to ES. But now that you're considering ER2, I'm thinking maybe I was premature in switching. Are you concerned at all about the move to ICE?
Another thing I wanted to ask about was bid/ask size. Do you pay attention to that at all? It seems that when there are like 3 times the number of bids compared to asks it would not be a good time to short, but that hasn't always proven to be the case. What do you think?