Left side trap zone.
Trap broken (probably by handler 2 circling behind disc, but could be through the 1-5-2 cup). Note that if D#3 lets the short dump go but picks up the swing cut the trap cup can reset easily.
Assume offense gets disc in center of field with swing to show cup reset with offense pushed back into endzone. Note cup formation and how O#2 is out of position and not a threat although uncovered.
Assume O#2 does as should, will come around and receive the dump pass. D#6 and D#7 must adjust quickly or zone is broken up sideline.
Cup Resets to trap sideline. D#1 Can be aggressive to stop pass to O#1 but should not challenge the dump to O#3 if the offense is willing to lose yards to get the swing.
Occasionally D#2 can swing behind O#2 to challenge the dump to O#3 but D#5 and D#3 must shift with him so that there are no holes through the cup. D#6 should cover the up the line as the cup shifts.