the powerlock is designed to ride lock on the metal fitting...
That is the all point of this design.
What you have absolutely to avoid is to spin the bar when lock on and they recommend also when jumping.
I broke 3 chicken loop in 2 years!! That is not too bad, now I change them regularly every 3-4 months to avoid breakage as you can't see when the internal rope is damaged.
My last chicken loop is a Liquid Force '04 and so far is holding pretty well.
To avoid to loose the kite a fit to my bar also the Naish UDS and together they work fantastic...