That click is driving me nuts! The problem is the bolt holding the crank arm in place, it is made of aluminum and if you over-torque it, it will strip the threads when you are really hammering on it(thank god the threads on the bolt only and not the actual crank).

FSA now seems to recommend using lock-tite on it when you install. I think the proper torque is only approx 3 ft-lb (as per FSA)...which is all you need, its the pinch bolts that actually keep the arm tight on the crank after that and also squeeze the crank bolt in place. Make sure you use a degreaser to clean both surfaces before applying lock-tite...and allow some time for the lock-tite to set in.