So what they do is torque to rod cap down and then measure the big end. After they have the measurement, they take the cap off, press or hammer out the old rod bolts, and then install the new ones. They torque the rod cap back on and then measure the big end again. What will happen is the new rod bolts can cause the big end to become slightly oblong. In that case, they resize the rod end to the first measurement they took.
I have watched many YouTube vids on this and read up on it. I have not seen one where the rod did not need to be resized after installing the new rod bolts.