It would all depend on your needs - by printing specific forms, you are able to scan multiple assignments at one time. If you would like to print the generic forms, this allows for easier copying. I would be careful printing things on the back as that can bleed through and cause scanning issues on the front. I would print a few practice forms first to see if they will scan without issues. Just know we do not encourage printing front and back.
Please let me know if you have any other questions.