When you place an order, don’t you always want to buy at the lowest point and sell at the highest? If it misses by a single point and doesn’t go through, you’ll be annoyed for half the day; if it then rises after you sell, you’ll feel like you "lost out."
To be honest—this isn’t a technical issue. It’s a mindset obsession.
Long ago, our sages already explained this clearly: when the flowers are not fully bloomed and the moon is not fully round, it ends up that "almost full" is better than "perfect."
When the flowers haven’t fully opened and the moon hasn’t fully rounded, even though it looks like it’s missing something, that’s actually the best condition. Because once everything is fully opened, it begins to fade; once the moon is fully round, it starts to wane. What truly lasts is never "perfect"—it’s "almost full."
Trading is the same.