Tommy_B
Clutching at saws...
Not familiar with that rope but if the cover braid is loose there is the chance it can milk and the core moves inside the cover, happens on loads of double braid. Stitching it would be fine. The problem comes when you stitch it or cut it with a hot knife and the cover and core aren't equalised. If you cut and seal one end and tie it off on something solid then tie a prussic and run it down the entire length of the rope you will equalise it. Then cut and seal the other end and you should be golden