Well, yes, if you measure then you'll get what you get every time and this according to the method, prescribes a bra size.
My point is that this doesn't take into consideration the shape and lay of your boobs, whether they're full on top, tear drop shaped, droopy, wide spaced, low on the rib cage, wide shouldered, or narrow set, top heavy, close set, inward pointing, high on a small rib age etc.
Measurements around the ribs and across the nipples will always read the same, but the confort of a bra will depend utterly on the fit and style of the bra.
Sometimes the band size and cup shape don't suit no matter what the measurements say.
I've never found a bra style with the bra guru method that suits me as I have narrow shoulders a tiny rib cage, wide spread, outward pointing, large boobs that sit high on my chest. So all large cup, wired cup bras stick in under my arms, and those without wires (like sports bras) jam my breasts together and crush them into a massive uniboob shelf. I even tried out a Doreen style, and it was so "sweater girl", I nearly took an eye out on the tube.
Measurements say those bras should fit me perfectly, but they don't. They're damn uncomfortable, and blardy expensive..
I wear styles that suit my chest and breasts, and I take in the band if needed. And I don't think getting hung up on a method of measurement, to the exclusion of common sense, is a useful was to go about dressing yourself. It makes for unhappy boobs.
