alright, i have a dragon type monster. all the bones are FK except for the neck. i terminated the IK on the last spine. i attached a goal null to the head. parent in place off, so it attaches to the base. i set the head to the goal null. set the 2 neck bones to IK in the control. when i move the null the neck wiggles, as if it's fighting it's self over what direction to move. it just keeps vibrating but doesn't bend.
so what did i do wrong?