Return calibrated pose

Hi,
In my calculation to get the DH, I need to use the calibrated value. Theses values are correct i.e - close to the theoretical value- excepts delta_d for axis 2, 3 and 4. (Same as the example above)
I can use 0 for delta_d for axis 2 and 3, because the theoretical value is 0. But what is the value I have to use for the axis 4, because d4 is not 0 ?
And if the delta_d2 and delta_d3 are absurds, why the value of d2 and d3 in .urp are not forced to 0 ?