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Here's the thing with these levels,
1) how do you know order flow is actually reversing there i.e. it is not just the support/resistance having it's effectIgnored
You have planned your trade and see order activity at the level that indicates that buyers are stronger than sellers. You won't get more confirmation than that.
Look at the bounces on the way down in cable. Were those "confirmations"? Why not? Why were they not, but the same patterns when the trade goes your way would be?
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2) once orderflow is 'confirmed' to reverse, how the hell do you get filled at the top/bottom!
If you trade such size that getting filled is difficult, then you scale in obviously, and you may start selling when you see others do so, i.e. before the level. Normally not a problem though unless you trade really big size. I didn't have any problems getting filled at 5488.
In addition to that, you may be missing the point slightly, which was (1) that reading tick flow adds significantly to your trading, and (2) that looking for confirmation is always biased and subjective, be it on tick flow or anything else, so you might as well stick to what's objective. For example, reading order activity at a level, which isn't a confirmation of anything, but can be part of a trading plan that has better R:R than most "confirmation" based such.