I have a question for those more in the know than I am (a wide audience, believe me). Several years ago I purchased a kilt for my daughter's wedding. It came with tartan flashes that were simply a flattened, sewn tube of fabric with a squared, fringed end. They were the first tartan flashes I owned and have served me well. All of the tartan flashes I have seen or received since then have had notched ends. Is one style more correct/preferred over the other or are both equally accepted?