I also like Sharon's method. I always trim after attaching the binding that way my walking foot is completely supported. If I have way too much extra I will cut the majority of it away and do a finish trim after attaching the binding. And I can't say enough good things about using Wonder Clips instead of pins. I was never happy with the results of my attempts at machine finished binding til I tried them. I still prefer hand finished binding. I use a ladder stitch with 1/8 to 1/4 inch stitch length. It's invisible and stands up to machine washing.