If you don't want to order anything go with the Break pearl and drill it weaker than your current one. You can also surface it up to 4000ab with some polish.
If you decide to order something try a Villain, Awakening, Creature, or Creature pearl. These should easily fit in between those balls.
The Code can work but you will need a weaker layout and surface adjustments. It's close to the Break pearl with an earlier roll.
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The original Pin Krusher