I'm trying to finish up a shot today. I'm down to the end, I'm doing the overlapping action now. I find this part to be one of the toughest parts to do. There's something about it that's hard, it just doesn't look right until it looks right. It's like your animating it over and over again, wrong, wrong wrong, wrong, right. There's this "sweet spot" it hits when it just looks right, until then it looks like it's on a string or it has a life of it's own. Sometimes I don't know how long it will take to finish the overlap. Sometimes an hour, sometimes a day or two.