I use PowerPro braid and Offshore boards. I have the heavy duty red clips with the pin, but the slack to make the flag work will slip through and tighten up with braid. Then the flag will not work and you end up towing dinks around. I just wrap the rear clip with a loop around this clip and behind the pin. It will not slip this way, but it does take a little getting used to unhooking and reconnecting. Especially with old eyes and arthritis.

But it works great.