Its the second hinge on that page.They are a bit tricky to get in porperly,but once installed there is almost no resistance,and the surfaces can move very freely,without robbing the servos of torque.Some melted vaseline or oil in the center part will help from getting glue in the mechanism.I have used the larger version of this type,but never the tiny ones for park fliers.I assume they will work equally.
I will shoot some video tomorrow.
I think the pinned hinges would work well too.
I ordered my second 260 already jut in case they sell out
http://www.greatplanes.com/accys/gpmq3950.html