How Do You Spot Structural Divergences Between S&P 500 (ES) and Nasdaq (NQ) Futures?

During session opens, key equity indices like ES and NQ often show SMT (Smart Money Technique) divergence, where one index sweeps a swing high while the other fails to do so. Do you use this divergence as a primary signal for institutional manipulation, or do you require a 3-minute Change of Character (ChoCh) on the weaker asset before entering?