Look at it this way, you did North Americans as a welter, right? Some of the same judges will be at Nationals. Your going to get noticed!!! It going to blow their minds if you bring the same condition.
Good luck Shelby, I'm sure you'll turn some heads in the line up! The best part is that you've improved your physique as the year went on so no matter the outcome of the show you've already ready won by bringing the best Shelby to the stage possible!