u/AzaleaRose34

I am making Sonya by Aranea Black, and do not fit one size perfectly, which is obviously the case with most people. I am an experienced sewist, but this is my first true corset, although I did make Spearmint by Mood Sewciety, which is a top labelled as a corset, that I added boning to. I need to lengthen the underbust to waist and shorten the waist to midhip, as well as blend between sizes b to c between the waist and middle hip. What are your tips for altering patterns to fit your measurements? And what is the best way to get an accurate adjustment when blending sizes?