i would even go further. a quality string job should straighten the string on every pull.
because if you straighten it at the end of the whole stringing process, that will lead to tension loss.
if you look at my videos, you will see that the strings are straighten on every pull. that way, you don't need to use the setting off tool at the end. you take the racket off the machine and every string are already straight and no tension loss as a result.