I think you aren't getting an answer because people are confused. You say " HQ DEPOWER BAR and then talk about the line that goes through the bar
going to the BACK lines ????? That doesn't jive ????? 
With a DEPOWER bar the chicken loop line runs through the bar to your TRIM STRAP. and then your FRONT LINES !!!!!!
With a FIXED BRIDLE BAR the line runs through to a pulley that joins your back lines !  You would only be counting on that for braking and a bit of
assisted steering. It doesn't hold any weight when jumping or leaning back. 
Is it a Fixed bridle kite or a Depower you are flying ? 
Replace it with climbing rope !
Kites: 2.5m Profoil  , Quadrifoil XL kitesurfer, NPW 5 Danger. 
Flexifoil: 1.7m Sting, 4.9m Blade 3, 9m Blade 2.  
Flysurfer : 19m Speed 2 SA, 7m Pulse
Peter Lynn  :18m Phantom, 15m Synergy, 10m Synergy, 1200 Farc,  460 Sarc, 130 Tarc, 5m Peel, 4.2m , 6.4, 8.5 C-Quads, 3.5 LS2 single skin. 
Rides:  Flexi / P.L. Frankin'Buggy , Shaped + straight skiis, sand skis, Coyote blades. Core 95 ATB. RKB R2 ATB . 
Ken (K2)