From measuring off a favourite RTW jacket I’ve used a size 10 shoulder, tapering out to a 14 around the armhole.
Does that sound weird? Would you do it another way?? Suggestions gratefully accepted!
I measured for a FBA and keep coming up with a 2” difference, which doesn’t require it, so haven’t tried one.
My saving grace is extra fabric. If I can remember to use basting stitches and something needs to be re-cut, I should be able to do it easily.
If life will just leave me alone long enough to finish tracing these pattern pieces . . .