Ok cool, This is how it works:
You take the 4 Pokemon and clone and give me back 3 copies o each. Then you EV train the Pokemon, clone and give me back 3 copies of each, That's a total of 24 trades.
You get to keep copies of what you EV train and 2 credits.
Or You get to keep copies and choose 2 Pokemon and you'll have semi rights on those 2.