Just installed this 2 for our group yesterday. Always good to have something else in your back pocket the 2nd time you play teams in conference play. (1st one) DOUBLE: 3 is running off of a stagger screen from 5 and 4. If 4 can slip to the basket he does, 5 pops up as a safety outlet. If x2 helps too far into the paint, we can zip it over to 2 in the corner. (2nd one) TWIRL: Gives us a similar look to DOUBLE except the 3 and 5 start in different spots. 3 screens for 5 and 5 "twirls" the screen by circling back to screen for the 3. It's then essentially a "DOUBLE" look like the 1st play. On this one, 5 can slip the screen and 4 will pop.