I am having trouble when I make quilts with sashing between the squares. I sew a row of squares together with sashing in between. Then I sew a long strip of sashing to one side of the row. When I sew the rows together, I try to pin the horizontal row meticulously to the neighbor, but given there is 1 or 2 inches of sashing separating the seams, it is hard to match them and I end up with some "jogs". I hope I am making myself clear. Does anyone have a good tip for matching sashing perfectly?