Controlling iTween Overshoot Amount

I’m trying to create a “bounce back” animation for an object and iTween’s easeOutBack is exactly what I’m looking for. However, the “Back” animation is a bit too subtle and I’d like to adjust the overshoot. I looked through the iTween documentation and can’t seem to find anything like TweenLite’s ‘easeParams.’

Is this even possible? If it isn’t and the function needs to be edited, could someone point me in the direction of which part of the function would need to be changed?

I often have to tweak the easing behavior of my animations because I am a little obsessed to achieving just the right feel. That’s why I added the ability to pass custom tweens to my animation engine LeanTween. You can simply define an animation curve and pass it to the engine, for easeOutBack I would recommend something like this:

[5696-screen+shot+2012-12-11+at+10.32.57+am+(2).png|5696]

And then you can adjust the exact speed that the ease out back has (by adjusting the angle and the spacing of the curve).