In response to a query on Facebook, here is a quick overview of how to cut chevrons.
Specifically, I'm looking at using a striped fabric to create a chevron down the front / back, as I did in this case.
I don't find chevrons all that difficult to match (although you do need to take time) because I apply this method. The pictures are a scale model.
Say this is the front bodice. Instead of cutting on the fold, I will be cutting two pieces. That means I have added a seam allowance down the centre front.
When I cut the fabric, I consider the placement of the stripes. Because I have a design here with a v neckline, I line the edge up with the stripes.
I draw in a few key lines right across the pattern piece. Obviously as this is a scale model it looks like a lot more drawing than I actually do. When I did my 'You Can't Win Them All' dress I only drew in the top black line. As long as there's enough to guide placement, it's all good.
I take the pattern piece off the fabric, and turn it over.