The connection from the FP to the shoulder. The tab does not fit in the slot. And the leg FP's don't fit well either. I can get them on, but the slightest breeze could dislodge them. Also, I noticed the high speed hinge on my right wing is noticeably loose. If I tilt the valk forward or backward, it will swivel on its own. I know I have the hard points full, as in the pictures, but my left wing does not swivel on its own.