Unless you are getting typed in a 737 or comparable commericial jet (and then your company will train you how to fly it their way), the ATP practical is the equivilent of the Masters Degree in the military. You are not going anywhere without it, but it is completely worthless. The only thing it shows is that you are willing to spend some time and money to get hired. Guess it is as good a way as any to sort the applicants.