Quatro shaper Keith Teboul discusses setting up a Quatro board with fixed fins. Although targeted to the Quatro’s fixed fin setup, his basic principles are the same for all boards.
Footstraps – Back for a quicker shorter turn, and forward for a longer turn with more drive. Also Heavier you may want to be more forward and lighter sailors further back.
Mast Track – Back for easier tighter turning, and forward for more drive.
Don’t be afraid to go out and come back in to adjust settings!