Hi Kat!
If you're filling the L's that fast I wouldn't give up on the XL's just yet. From the sounds of the new contoured larges they're the same size diameter, or almost as the XL's, just not as deep. There's a transition period going from the L's to the XL's where you won't notice much swelling, or don't think you're experiencing any because of the extra width. They're so much bigger all the way around, width and length, that it adjusts how your breasts were swelling outward in the larges to giving them extra width in the XL's. Your breasts will start having more roundish swelling, and eventually they'll swell more and more, as you experience growth. Using the new contoured cups may help transition them into the XL's, but don't dispose of your XL's, because I don't think it will take too long for you to move up from the contoured to the XL's, depending on how long it took you to fill up the L's. That's just my opinion, I'd love to see them make the XL's in the new contoured design, but I may buy a set of the new contoured when I can afford it too since I have quite a ways to go to fill up the XL's, wish I could afford them now. :'(