so Iv been watching the 2000nl sauce vids, and noticed he 3 bets hands like 7s on btn and sometimes folds 4s, and in episode 3 commented on theres more flatting on the button in the 2000nl games then his games. basically my understanding of this is the blinds are too aggro in the real high stake games to flat on the button, also adding 7s aj ect to btn 3 bet range vs co strengths that range, please add any other merits of the 3 bet strategy on the button with a wider value range,

but my question is in more passive low mid stake games am i right in saying flatting more with this 2nd tier of value hands more plus +ev and im guessing also lower varience...?