Use this blueprint as soon as you unlock [item=quality-module-3]. Use only before you can mass produce [item=electronic-circuit,quality=legendary][item=advanced-circuit,quality=legendary][item=processing-unit,quality=legendary][item=superconductor,quality=legendary]. Upgrade the quality modules gradually and equally. You can redirect the splitters, change the passive provider chests' limits or change the belt conditions to decide when lower quality modules get recycled.