Both are best when trying to build a strong Serious Team.
I like the idea of PSA's to go because it's a fast transaction.
Another way would be to post in classifieds or start with friends and family.
Team building is fun and to watch them grow to become rock stars is awesome!
In answer to the question, it's my own opinion the best way is to just get a Standing order of 50 psa's to go and teach them duplication.
