Chaining iTweens to extend linear movement

    void Start()
    {
        EaseIn();
    }

    void EaseIn()
    {
        easeInDestinationPoint = Vector3.MoveTowards(transform.position, destinationPoint, easeInDistance);
        easeOutDestinationPoint = Vector3.MoveTowards(destinationPoint, transform.position, easeOutDistance);
        iTween.MoveTo(
            gameObject,
            iTween.Hash(
                "position", easeInDestinationPoint,
                "speed", speed,
                "easetype", easeInType,
                "oncompletetarget", gameObject,
                "oncomplete", "LinearMovement"));
    }

    void LinearMovement()
    {
        linearSpeed = Vector3.Distance(transform.position, lastPosition);

        iTween.MoveTo(
            gameObject,
            iTween.Hash(
                "position", easeOutDestinationPoint,
                "speed", (Mathf.Sqrt(linearSpeed)*60f),
                "easetype", iTween.EaseType.linear,
                "oncompletetarget", gameObject,
                "oncomplete", "EaseOut"));
    }

    void EaseOut()
    {
        iTween.MoveTo(
            gameObject,
            iTween.Hash(
                "position", destinationPoint,
                "speed", speed,
                "easetype", easeOutType,
                "oncompletetarget", gameObject,
                "oncomplete", "OnMoveComplete"));
    }


    public float linearSpeed;
    private Vector3 lastPosition = Vector3.zero;
    void LateUpdate()
    {
        lastPosition = transform.position;
    }