I just had to share - after finally finding a 30D was the right fit for me in FL, I come to find I've quite literally grown out of them. The elastic in the center gore snapped on me at work the other day! And this is wearing it on the very last hook still. Luckily, the surrounding fabric is still holding the cups together so I didn't have a total wardrobe malfunction.
I had read before that those who live in high altitude not only have increased lung capacity but also larger chests overall. Sure enough, I grabbed my tape this morning and my underbust is now 29 instead of 27 or 27 1/2! I haven't been doing weight training, nor did I gain any weight. Guess I'm glad to still have a selection of 32C's around