Our N6.0 mainsheet's is 7/16" trophy braid. The previous owner didn't wear gloves therefore he choose that line type and size. The line was too big to run smoothly through the blocks, especially on 0-5 wind days. I stripped the cover off for the part of the line that runs through the blocks. It runs much better and even cleats better. I need to take off about another foot or two of the cover because when we are going down wind the sheet is often being cleated right at the taper. I was concerned with the strength of just the trophy braid core. However, we have not had any problems with it to date. The strongest winds we have been sailing in with the tapered sheet is around 15 consistently with gust just slightly above that.