Every pair calls now — a set at 200bb against an EP overpair is where stacks change hands.
Calling ranges widen before 3-betting ranges do — set-mining and suited-connector calls gain value faster than thin 3-bets.
The tightest confrontation at the table: an early open, and you right behind it with six players still to act.
Assumes a ~4bb open; 3-bet to ~3x the open in position, ~4x from the blinds — larger as stacks deepen.