We are in the last week of our season in oz, so we have had the new rules for 15 weeks. I coach juniors and its fair to say they have struggled with not being able to pass into the D directly. We have worked on them to KISS, they must get set quickly and check for a sideways, backwards pass quickly and then take on the D looking the beat a marker ideally inside the circle to get a corner. Best drill is a one on one from a standing start empahsing beat one player then look to pass rather than shoot in D. Umpires particularly in lower grades get very picky about taking the ball back to precise spot but we encourage the kids to just go for it when they are ready, the element of surprise is vital. ... Generally for juniors though it slows up the game and it's not much of an advantage to the attacking team.