|Any time you are hemming something that is curved you must realize that the inside of the curve must be eased. The fastest way to do this is to put the bottom of the hem next to the feed dogs and the top of the item next to the foot. The feed dogs naturally want to pull the bottom layer a tiny bit faster than the top layer; just like when inserting a sleeve with the sleeve touching the feeddogs to ever so gently ease it in, so to can the feed dogs keep the hem from rippling. I have gotten quite good at "feeling" the edge of the hem from the top of the fabric, and this ususally makes it cup under naturally. I have overcast the hem with ,my serger using the differntly feed to ever so slightling ease it. I then end up with a cover raw edge that cups to the inside. Voila, an instant ease! PRESS BEFORE TOPSTITCHING...sorry, just wanted to make sure you remembered that step, too!