8 shop lines in series: Body → Paint → Chassis → Underbody → Interior → Exterior → Final Line → EOL. Distribute stat points across four categories per line (1–5 each). Pull a point from one line to strengthen another — balance the shop, protect your bottleneck. Total pool grows as you pass Lessons Learned.
OP — Operators & training: shorter cycle time, faster recovery from people issues.
QT — Quality of tasks: lower defect rate (protects the Quality term of OEE).
ER — Ergonomics: less fatigue drift — low ergo lines slow down as the round goes on.
EQ — Equipment quality: fewer micro-stops and breakdowns (protects Availability).