Two years ago, ds#1 was initially awarded a type 7 after the first board with a 1390 SAT (his highest one-time sitting since AFROTC doesn't superscore). It was upgraded to a type 1 after the last board.My DS got his AFROTC scholarship 2 years ago. His stats are: SAT-1540, Rank 1 out of 780, 7 APs when he applied (Scored 5 for 6 APs, and a 4), President of Math club and RC Race Car Club, Varsity Soccer team, 4 Years of soccer refereeing Exp. We thought he would get a type 1, but he got a type 7 instead. He believe it's the interview that lowered his overall score. Interview is big part of the evaluation.
I would suggest you retake SATs as many times as you can. For that year that my son was applying, I noticed that those who got Type 1 and Type 2 all had 1500+ SAT. Plus, higher SAT will increase your choice of getting into your dream schools anyway
This year, ds#2 was awarded a type 1 (only type they have now) after the first board with a 1450.
I think a lot more goes into it than a 1500+ SAT.