This mod is designed to encouraged class based team work. It is intended that you use this mod alongside a class based mod that boosts the recipes impacted by the reductions here, such as "The Working Classes".By increasing production of certain items for specific classes, and reducing output of those items for everyone else, this gives players an incentive to co-operate and/or trade with each other to produce goods efficiently. 

Whilst it is not intended for people to use this mod in single player worlds, it will work just fine. It will increase the difficulty though, as one player won't have access to all the class specific recipes, unless you turn class based recipes off in your world settings. 

Recipe Reductions:

• Cobblestone blocks/fanned blocks/stairs/slab: Output reduced from 2 to 1
• Boards produced by sawing logs: Output reduced from 12 to 8
• Flax Twine: Fibres per twine increased from 4 to 6
• Mortar per 4 slaked lime: Output reduced from 32 to 16

By contrast, in the working classes these recipes are buffed for the following classes: 

Miner: 

• Cobblestone blocks/fanned blocks/stairs/slab: Output increased from 2 to 4

Carpenter

• Boards produced by sawing logs: Output increased from 12 to 16 (per log)

Tailor

• Flax fibres required per twine: Decreased from 4 to 2

Potter

• Mortar per 4 slaked lime increased from 32 to 64