Brilliant! I found a dry cleaner that does alterations and for cheap they did a same day alteration. I didn't know how much to take it in, and I don't speak the language, but it's good enough for now. It's not "flat" per se. But under a shirt, it's probably not my biggest problem. And it's super comfortable, unlike my underworks, no constriction at all. So the binding to comfort ratio is probably worth it. It's also good to know that this is possible and I could probably get away with it again before the armholes get to small. Thanks! You made my day, I was really depressed that this wasn't going to work and now it's been rescued.