I did a rail fence and it gave me fits when I was putting the top together. I thought it was correct. Fortunately, I was on retreat and proudly put it on the design wall to show off my top and noticed the second to last row had an error it it. YUCK, another rip out.
For me the rail fence was a real bear, fotunately, it was only a lap quilt. That being said I plan to do another one, I liked the way it finally turned out. It was such a confidence boost.