Someone here advised me to test drive my mock up to feel first hand what I want from the corset and what I am looking for in a corset. This was good advice.
My mock up is very short above the waist, it ends halfway between waist and bra band. I chose that design because I thought it would increase mobility (and it does) but I mistakenly thought it would look equally good on me as it does on a very slim 50's model.
Another reason I wanted a corset that didn't end up underbust was because I feared the apparent widening of the shoulders I had seen with some (not all) commercial underbust corsets I had tried on.
And I want to talk about that a little, since I think there should be a way around that.
Has anyone else experienced seeing their shoulders being pushed up and out (sideways) when wearing an underbust corset?
Is this caused by certain corsets squeezing back muscles and/or shoulderblades up?
If so, because I don't see edwardian photographs sporting women with pushed up shoulders, could this be remedied by allowing more room at the top of the corset to avoid squeezing things up and out?