It is not a big hurry right now. Some BGOs prefer you to have about 50% of your application complete before they meet with you.
Some are ready any time you are. They all have their own style, so I say go with the flow. Remember that in the summer, they may go on vacation too.
If they don't call you or Email back right away, it's because they have lives too. They also are BGOs to more than just you.
Sometimes they are assigned to the students of several schools, because there's no way of knowing from year to year how many will apply to USNA.
My DS was the only Academy candidate in his school District (two different High schools with a student population of around 1,200 Seniors) and his BGO was the contact for six other schools.