Your senator will state on avg or last yr they had XXX applicants. They may also say this yr we will have 2 slates (the SAs can have 5 cadets charged)..theortically they could have more, i.e. they have 2 available in June, and come the end of BCT their appt DORS, and that means they could appt 3, they do not have to have 5 at anytime, it is just their max.
Your Cong's office will also tell you how many appts they have for 14. I will state for us the congressional district was gerrymandered, he was the only one in an hs class of 298, that belonged to a different MOC...his MOC's district covered 70-100 miles north. The other was the rest of our city and 20 miles away, different county. Nobody from our county and Congressman Jones received a nom, DS was the only one that received it from Butterfield. In our County with 2 MOC's, 7 AFA applicants and only 1 got it.
The MOC's can opt to do one slate of 10 or 2 slates of ten if they have the ability to have 2 appts. Typically they will do the 20. They will also tell you how they submitted the list...i.e. alphabetically, principal, or principal with alt. Only about 30% of MOC's will do principal. Sen. Dole had 2 slates, when DS applied,the list was submitted alphabetically, being at the end of the alphabet he was on the second slate. The good news, we had 18 out of Doles 20 that received appts (some were Pres, some were cong, and there was also Burrs since they don't talk). The original was 16, I know that it went to 18, becasue DS opted ROTC over AFA, and he was the 2nd to do it and they wanted to exit interview him why he went ROTC over AFA. Both him and the other candidate did it for the same reason or so Dole's office said. They were military children for their last 18 yrs and opted to be college kids with a committment to the AF, instead of the feeling that they were now ADAF.