I overlap the two ends by the width of the binding (2 1/2 inch binding = 2 1/2 inch overlap). I then fold & crease the top piece corner into a HST, wrong sides together, so that looking at the overlap, it looks like a bias seam. If you peek at the raw edge you just folded under, the raw edges will align with the raw edge of the bottom piece. Carefully lift and pin the two top raw edges together (right sides will be facing and on the inside). This is the edges you will sew diagonally into your 1/4" seam. Just follow the line you previously creased. Trim (I always check first), press and you are ready to stitch the remainder of your overlap onto the quilt edge. I never have twisted edges anymore. Hope this is understandable and saves the day for you.