Whether you train under Part 141 or Part 61, you'll learn the same things and take the same FAA tests. The only real difference will be the order in which you learn things. Part 141 schools must use a structured curriculum that teaches skills in a specific order. If you fly every day, this curriculum ensures the effective, efficient use of your training time. Part 61 schools are not bound to a structured curriculum (many Part 141 schools also train under Part 61); they can rearrange the order in which you learn things to suit your schedule.  We at Harford Air Services find this benefits those who can only fly on weekends and evenings best.