A great many of the charts that arrive in our Thrandeston packs show the same morning: yesterday's high is obvious, the London cash open is keen, and the first fifteen-minute candle runs through the level as if the argument were already over. Then the next two candles come back through it, and the trader who bought the break is defending a poor location into the 8:30–9:00 stretch.
In tech analysis training we treat that first print as a question, not an answer. A breakout through the prior day's high has to be accepted by the session that follows it. Acceptance, for our drills, is a close and a hold beyond the level, not a wick. If the candle that broke the high closes back inside yesterday's range, the drill answer is 'failed break, wait' rather than 'chase the next attempt'.
The London open makes this worse because the overnight inventory is being unwound at the same time as the cash market finds its own high. A level that looked clean on the 4-hour chart is being tested by two groups at once. That is why a drill round will often hide the 8:00–9:00 candles and ask you to mark the prior day first, then predict whether the open is likely to probe or to expand.
None of this means yesterday's high is useless. It means the first touch in the opening range is a poor place to spend a full risk unit. In pullback language, the trade you actually wanted is often the retest after a close has held above the level — if that retest comes. Many mornings it does not, and passing is the correct drill score.
When we run price action drills for breakout and pullback setups, we keep a tally of first-touch breaks versus accepted breaks on the same pack. The ratio is rarely flattering to the first touch. That is the point of practising it on old sessions rather than discovering it with live size.
If you want this kind of marking with a clock on it, look at price-action drill sessions or write from the contact page.