Common situation: Hitting Draw on the turn

[DJ Sensei]

if you're gonna draw to a flush, 1 is a good board to c/r the flop instead of c/c. 2 and 3 are good for donk/3bets (as are sets there sometimes).

once you get to the turn by c/c-ing, i generally prefer a lead, because you want to both increase the chances of getting a big pot, and give some support to your non-flush bluffs in these spots.