I always quilt my borders separately with a different pattern. I disagree that straight line quilting is easier. For one thing, you have to sew straight and for another, you have to wrestle the quilt under the machine too many times. With free motion, you can do a block size area at a time then move on - a lot less working the quilt sandwich around. Meandering isn't hard if you have learned to sew in all directions - just think big puzzles pieces. I think the curves of meandering would be nice on a Rail Fence. Draw your pattern with the index finger of your writing hand on any surface to imprint it on your brain, then have at it. I am ready for feathers, so I will be doing that a lot.