If you mean control limited by evaluated from distribution. Since released this program on last year. Team agreed to does not interpret the chart patterns or require any Cpk and use offset spec. as trigger due to mold offset data like the one way data and concern to mold tooling as guide and mold chase that very difficult to adjust offset to CL or zero (if any) and affected to frequency of setup time / tooling consumption cost also. Then we setup constant trigger point instead of UCL/LCL by 3 sigma krub.