Put everything on middle setting and get used to that before changing anything.
Centre strap = power & flying behaviour
Outer straps = change the turning speed
Centre, set it once to your liking (your preference) then never change it unless you're in opposite conditions that you're used to, then it might need
a bit adjusting.
Outer straps can broaden the windrange if used properly too, but there's a contradiction:
light wind needs straps open, but when you want to whip it about (needed in light stuff to keep it going) you'll need to tighten them for faster
steering.
Marijn Tijhof,
Peter Lynn Kitesports