Works great. Only used a few times but easier to book and unhook to harness than others
I have been using the Duo race harness line with my wing and I absolutely love it. It's the best I have tried, really easy to adjust while sailing.
I own several Wing Mono Harness Lines.
The last order was the new Mono Harness Line Race, which is a big step foward. It enables a shorter total system length, carries a smaller diameter rope and a bigger diameter tube. This makes the handling much easier regarding installation or swapping, as the smaller diameter rope feeds easily through als channels within the system, so that no boom or grip detachment gets necessary for installation or removal. Only item I added is a stopper ball and the remaining excess rope I braided for a perfect grip section