You will find the links in place of shocks with springs gives a more acurate view of balance in the car regarding positioning of electronics and weight etc.
If you have shocks with springs and you are not in the centre the readings will change from side to side dependent upon the side you pushed the suspension from. As the springs do not return to the same spot both sides unless there is equal and centred force applied.
Put you car on scales and touch each corner lightly, see how much the weight transfers from one side to another.
If you touch the other side it will go the other way. Now push in the centre and see if you can replicate the weights on the scales.
It will be out somewhat but you may not need to be 100% acurate or will not achive this with shocks and springs attached.