The Fixturlaser EVO measures the need for horizontal alignment, but its real power is in helping correct misalignment. The dual sensors allow the EVO to continually read the true position of the shafts, even as uncontrolled movements are experienced during the alignment process. The benefit of this “true position sensing” is that it allows the user to complete the alignment using a Verti-Zontal™ move adjusting in both the vertical and horizontal planes without re-measuring between moves. Alignments can usually be completed in just one or two tries.