There's plenty of music on the PML that is "easy" for its category. Find one of those and play it. Even if you're 6A V you can find an "easier" Grade 5 and Grade 4, and play a much easier (grade 3-or-so) march, if need be.
Plus - consider EVERY SINGLE JUDGE knows EXACTLY what is going on WORLDWIDE. I'm 100% sure they're not going to require the same level of virtually flawless performance as is typical.