Tooling Ball Lengths are correct 
Detector Length Diff  PD1 = -0.0005,  PD2 = -0.0001, PD3 = -0.0007, PD4 =-0.0015 

     X          Y          Z        Roll     Pitch    Yaw  
   (mm)        (mm)       (mm)     (mrad)   (mrad)   (mrad)
 333.0892   262.7563   253.0583   -0.0009   -0.0005   -0.0023 
 333.0892   262.7563   253.0583   -0.0009   -0.0005   -0.0023 
-0.33309   -0.26276   -0.25306    0.00000   -0.00000    0.0000 

              X                   Y                    Z 
             (mm)                 (mm)                (mm) 
Centered Tooling Ball values wrt Magnetic Center 
Raw      167.2913             173.0810             -0.4037   
Mechical 167.3215             173.0424             -0.4293   
Diff     -0.0301              0.0386              0.0256   

Centered Tooling Ball values wrt Mechanical Center 
Quad Roll 167.3549             173.0810             -0.4118   
Mech      167.3215             173.0424             -0.4293   
Diff       0.0334              0.0386              0.0175