Haven't tried XS yet, how does it compare to ozone edge? I tried edge v10 and I fell in love fits perfectly to my needs (twintip hooked in jumps), I'll buy them when I buy new kites next time.
PU coating might be a good thing if it's well built.
I had crazyfly bar and the rope was frayed inside of the PU and snapped - it wasn't a much used bar.. Maybe it was just bad design and the PU wasn't tight enough around the rope and sand got in.
Tried new duotone bar and the bar didn't move in/out if it wasn't straight.
I have also airush bar with two thin pu coated ropes and it moves smoothly