Yes, I have done the intervention and got the correct size for me... apparently. I am fortunate to be large on the cleavage side but I just hate underwired bars. I get the right size. It looks great... I spend the day sat down, being dug into by fucking underwire bras.
I have resorted to wearing a sports bra. 
Would being large of chesticles and wearing none wired be to my detriment?