if you're using the original naishbar with original linesetup (and nothing modified)
you can squeeze a LOT more power by trimming the pigtails to full power!
the shorter the backlines, the better it should turn, but the forces increase.
a wing develops the most power right before it backstalls.
so you might trim the kite yourself by shorten
hte backlines until you reach a backstall when fully sheetet in.
this is a few cm too far then