My dd is also a Level 4. She struggled with that dismount for weeks. One day, it just clicked and she's gotten it ever since. She usually has to warm up a few times but then she gets it and it's beautiful. I think the important thing to remember is to get her hips & legs straight up. My dd had the tendency to bring them in from the side. I also hear her coach saying things like "push" when the time comes to bring her legs down. She also tells her to stay straight on the way down. She had a tendency to tuck her knees in. Just keep working at it and think how proud she'll be when she finally gets it!

HTH!
Beam is now her favorite event, too!