If I understand your question correctly I hope this helps. When I finish a row and move the machine to and roll up for the next row I don't move the laser right away. First I test where the last row is by moving the the machine and over the quilting on the quilt and see where my laser is pointing on the pantograph. Then I line the laser with the same point on the pantograph that I'm over with the quilt. I then test the new row with the laser, the highest points and lowest points and find my starting and stopping points. If I adjust the laser at all in the process I redouble check all the previous points. I use a friends machine or I would take pictures, it took me a couple quilts to understand how to line the rows up so the quilting was even throughout. Happy quilting!!