i can explain only anb. Anb angle which is like 5(4,96) is class 2. 0-4 is class 1 4+ class 2and if under 0 its class 3. My anb angle is 8 and i speak with 2 ortho(they are not doing orth surgery they in small city) say i dont need surgery. But i wont agree them i go find orthos who do surgeries.
I want to say if i dont need surgery u dont need surgery 2