I dont think you guys areetting the picture. Is there anyone out there with a 5.7?

There is no way to loosen the tiller arm, It is riveted in place to the casting with about 7 rivets on each side. It's solid. It will not rotate. When the rudder is rotated so that the tiller arm is outboard, the line perpendicular to the pin which holds the crossbar attachment points down approx. 15 degrees when extended tward the center of the boat. when the rudders are centered, this line is level. When the tiller arm is pushed inboard all the way, this line points upward approx 15 degrees. This is what binds the brackets which hold the crossbar to the tiller arm.
Like I said previously, this seems to need to rotate on one more axis than it is allowed to with the upgraded tiller crossbar attachment. Has anyone out there found a solution for this problem on the 5.7 Nacra. will the H-20 upgrade fit the nacra tubes?

I see that the Catsailor store also sells the H20 /universal hobie crossbar connector. if someone knows the dementions of the tube inserts and can relay that info it might help.Thanks