I've never done a bra top.
There, I said it. I feel better now.
Yes, I'm a mailler. I've been mailling for over thirty years, since long before the cool kids were all doing it. In all that time, I have steadfastly avoided doing bra tops. Now I'm building one. Or more specifically a bandeau top.
You want to turn pro, you have to deliver what the customer base wants. They want bra tops. So I'm working out the pattern, getting the measurements from the woman who will receive the prototype, figuring materials costs, and getting ready to branch out into an area that has already been heavily mined by others but not so much in my geographic area.
More on this story as it develops.