Two lines
Red one cuts diagonal, gets the disc being thrown with an outside curve (backhand if blue 1. is right-handed)
Front of left line cuts diagonally, gets the disc, outside curve, from red 1. (backhand if red one is right handed)
Red one clears to the back of left stack, blue one throws the disc to red 2, then he clears
front of left stack cuts diagonally, gets the disc, thrown with an outside curve (forehand if the thrower is right handed)
Front of right stack cuts diagonally, gets the disc, outside curve, forehand if thrower is right handed.
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and so on