Ah ok that clears that up but now I have another question. I've ended up with two 5 IV pokemon. However, I still need a perfect IV in a stat that the two pokemon don't have. These are a Def IV on the first pokemon and a Speed IV on the second pokemon. How can I do it so that I can end up with at least perfect IVs in HP, Atk, Def, SpD, and Speed?
Also, I breed the two 5 IV pokemon together. If both have perfect HP IVs, why is it some of the children born aren't getting a perfect HP IV?
hp att sa spd spe
hp att def sa spd
just keep breeding until it takes the speed from the first poke and defense from the second poke and hope that your random is special attack or the random is a iv 31.
as for the 2nd question it's because the random is hp. there is always one random stat when using the destiny knot.