Yea dude I had to change it because I run a slider rope (slider plus twist safety= bad news). Its a north iron heart safety. Just one point: its easy but I changed out the front lines with some new dyneema from whitworths (shop) because I had to cut the old ones off the core system which entailed learning to do a simple splice off youtube.
The xr kites are a absolute pleasure to fly (thanks north for f'ing up the evo) but honestly the whole system is the most impractical I have come across in modern designs.
Ill put some more pic's up if you want but its pretty simple if you have a spare safety lying around.
The dyneema cost about 30 bucks ( just make sure you have a thin enough diameter to fit through the new safety).