Finally Figured Out How to Make an FBA In a Dior Dart!

I knew I had seen how to alter a Dior dart somewhere, but I combed my fitting books, and I have a lot of them!   Could not find it anywhere.  Finally this post from from Cenetta of The Mahogany Stylist on how to make an fba with the new or newish, Y dart made me remember that I hadn't looked in Palmer/Pletsch's Full Busted DVD, which is where I found it.  I've also been playing around with moving darts and dividing my very large dart into multiple darts. It's fun and kind of empowering not to be tied to that very large dart my DD bust needs.

In case you don't know what a Dior dart is, it's a short dart from a side panel. Burda often uses them and Hot Patterns used it for their new Montpelier dress which I am making.

As you can see, this dress has a side panel which extends as the under sleeve for this dolman sleeve, if that's what you call this cut on sleeve?  But, regardless It has a side panel with a dart in the front panel. The side panel is far from the bust apex.  A princess seam would run over the apex or close to the apex of the bust.  Here is an example of how Dior used it in the 2015 Spring collection. 

I love this example with the top stitching.  I turned my single Dior dart into two to make them smaller.  Jennifer Lawrence had a dress on  that had three small darts from a side panel that was very attractive too. It really molded the bust beautifully.

This is from  The Cutting Class site. http://thecuttingclass.com/post/117112011493/bust-shaping-panel-lines-dior

My alteration of the Montpelier dress looks like this, showing how  I've divided the dart into two, but I am going to make two front versions one with one dart and one with two as it is here to see which I like better.  I also shortened the dress since this is a very awkward length on me, to just below the knee.

Here's  the Y dart I made. Because I have a low bust I made a smaller Y section, about 1/2" with the remainder, about 1" in the side dart, because it widens the upper chest  where I am not wide.  The sleeve gets cut off in this type of sleeve so that you can make the second part of the fba like you would in a regular armscye. Then it gets re attached and any opening filled in with paper.  This is smaller than the usual fba I make.  But, when I tissue fit it this is the width I needed.  It remains to be seen if this sews up well in a muslin.