GreenSockTweenLite.to(mc, 1, {alpha:0.5, delay:2}); //Without OverwriteManager, this tween immediately overwrites the previous one So even though there are no overlapping properties in the previous example, the 2nd tween would overwrite the first. The primary reason for this has to do with speed and file size. But if you're willing to sacrifice a little speed and file size, OverwriteManager can work with
