TRADING TIPS: Is Weak MSB/BOS Valid? Theoretically, yes. However, it reduces your success rate. Do I use it? Sometimes, if see multiple other confirmations. Do I like it? Not at all. Because it may turn to SFP (Swing Failure Pattern)
TRADING TIPS: You should keep checking S/R Flips (Support/Resistance or Supply/Demand Flips). These are great key levels and extra confirmations for your entries.
TRADING TIPS: Imbalances could be fully filled and move out of boundaries, or just fully filled, or even partially filled before reactions. It is best to confirm at least a little tap before entries or find micro MSB in low-time frames. There are always imbalances that you do not see that could be filling 1 min or 1 week.