Today I was using the soft-reset method trying to inherit SpA IVs (one parent had a Power Anklet and the other an Everstone), thinking that it worked like in past generation, that is (taken from the gen 3-4 breeding guide
- Save in front of the Day Care man.
- Take the Egg.
- If it doesn't have the desired gender/nature/ability, save in front of the Day Care man again (there should be another Egg waiting for you, which was produced while you hatched the first one) and repeat the process until you get a suitable baby.
- If it does have the desired gender/nature/ability, but it doesn't have the desired IVs, soft reset the game (START+SELECT+A+B) and take the Egg again (gender/nature/ability won't change, only the IVs), hatch and check the IVs, repeat the process until you get the IVs you want.
But I found that all the hatched pokemons surely didn't have more than 17 SpA and had the same stats at lvl1, so I checked two of them and I found that they had exactly the same IV.
Did this breeding mechanic change in BW or am I missing something?