I have 2 decks, a Nakamichi CR1-a, and a Nakamichi CR7-a. I would like to make a mix tape and then duplicate it. I think I should obviously make it on the CR7. However when I want to duplicate it, should I play it back in the CR1 and have the CR7 record, or play on the 7 to record on the 1? One of the tapes, I plan to keep, and the other will get sent off to a friend and played on who knows what. Thoughts?