My bad, sorry for grouping the items together.
If you're still willing to indulge me, then I recommend not using King's Rock on Aerodactyl either. The only good application of that item is on moves that have multiple chances to trigger a flinch, e.g. with Skill Link + multiple hit moves. Otherwise, it is a luck item and just as bad as the others. You will get more consistent mileage from Choice Band.