as fnord was getting at (not to presume to know the mind of a master), i dont really believe in trying to protect sets. i want all the action i can get, the reason being that sets (unlike straights, which cant improve) will improve along with most draws.

and unlike a flush draw, sets actually gain outs on the turn, not to mention that the flush draw will have a couple tainted outs.

theres a difference between protecting a hand, and putting yourself in a sitataion where the only call you can get is from an already made hand.