My L4 took almost a full year after competing L4 to get her fhc. It was the only thing she couldn't get for over 2 years. If your L4 is really close, it has everything to do with timing and hand/body position. She already has the strength. Once she gets it once, it's likely that she'll have it for good.
A funny story... My older daughter, who typically couldn't care less (at least wouldn't say much) about her sister's skills and routines, one day just prior to a meet definitively said that she would get the front hip at that meet. She called it and it happened! It was one of the most memorable moments: for the family, the coaches and many of the other parents. Her coach still makes reference to that incident. Hope that happens for your daughter tomorrow too.
Good luck to your gymnast at this meet!!! BTW, our Judge's Cup (also our first meet of the season) don't come for another 3 months.