Tooling Ball Lengths are correct 
Detector Length Diff  PD1 = -0.0005,  PD2 =  0.0000, PD3 = -0.0004, PD4 =-0.0014 

     X          Y          Z        Roll     Pitch    Yaw  
   (mm)        (mm)       (mm)     (mrad)   (mrad)   (mrad)
 333.0883   262.7570   253.0641   -0.0009   -0.0005   -0.0023 
 333.0883   262.7570   253.0641   -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      167.2965             173.0871             -0.3979   
Mechical 167.3215             173.0424             -0.4293   
Diff     -0.0250              0.0447              0.0314   

Centered Tooling Ball values wrt Mechanical Center 
Quad Roll 167.3601             173.0871             -0.4096   
Mech      167.3215             173.0424             -0.4293   
Diff       0.0386              0.0447              0.0197