/vp/ What am I doing wrong, I'm trying to IV breed a Staryu with SpAtk/SpD and I finally got one but it had the wrong nature, so I put it back in with the ditto (Perfect SpAtk/SpDef IV's) and gave the Staryu a Power Anklet (the one for speed) but only 1 in every 5 eggs has a Staryu with a perfect speed IV.
What am I doing wrong?

tl;dr game isn't transferring down speed IVs what do