Mmm. Leaving tiny boobs visible could be difficult for me, since everybody at work knows I am an exercise nut with almost no fat. I'd have to go back to my old (and now oversized) shirts. My current "moobs" are just tiny pointy things, exercise induced.
Now thinking about another thing. BA could be a point of no return? Even with FFS and SRS I could use "boy mode" if I wanted or needed it for something, but with decent boobage... I don't know if it would be bindable, or even if I was to do it (it is covered in social security along with SRS, so if they still looked like manboobs I would take it), I would not want to damage it...
I've never been a fan of big boobs, preferring functional things that won't obstruct, but... Sometimes...