Here are some pics of a test t-shirt. The fabric is a knit, with maybe 25% stretch. Thought maybe something that I learned I could pass along to you.
First, the details --
I used the T-shirt - darted no bsd FBA - draped.
Tools Dart rotationvert adj 01: 3.0 inches to drop the dart so that I lose some of the side seam bust bulge
Dart shape0.5 to curve the dart legs in -- and also automatically create an apex offset since the dart no longer goes all the way to the apex
GarmentLength adjust: 2 inches
Armhole shaping: 0.5 inches
HemlineFront adj: 0.5 inches to get just a hint of a curve
NecklineWidth: 2.0
Depth: 0.5
Neckline SelectorBateau
Besides the fact that I have decided that I'm not happy with my neckline choices (I really am more of a "scoop" girl), see how the shoulder line is dropping off my shoulders? Hmmmm, let's troubleshoot --
Should I change my shoulder length measurement? Maybe, but in this case NO -- my mst is good.
Should I change my across shoulder (front and/or back) measurements? Maybe, but in this case NO -- my msts are good.
Should I change my neck width measurement? Maybe, but in this case NO -- my mst chart is correct.
Should I play with my sleeve settings? NO, the sleeve is fine.
So what else would affect the pattern and what should I do?
What? You say I should compare my shirt to the actual paper pattern? I sewed the shoulder seams using my brand new serger .... I ran a test seam to set the differential feed so that it wasn't wavy ... it is a great seam.
<whisper> Oh, but I didn't stabilize it. I was in a hurry to finish this shirt. Sure enough -- when I check the garment to the actual pattern, the shirt has grown.

And so did the neckline
So sometimes things WE do completely changes what the computer did.
Will I toss this shirt in the corner? Heavens no! It is comfortable and certainly good enough for around the house. I even wore it to the library yesterday and will probably wear it to the grocery store.
Will I stabilize all my shoulders from now on? You betcha.