The 'new' holy grail in rope development; zero sheath slippage
Richard Tregoweth, Wednesday, February 13, 2013

Following the dramatic DB Tree 'Frog System' drop-test experiment early in 2012 kiwi tree climbers started taking an active interest in ropes where the sheath and core are permanently bound together - resulting in zero sheath slippage and no 'socking' when excessively loaded.
Beal Uni Core
The first ascent line off ..