I am purchasing a Noogleberry soon, however, I have some questions regarding my size and the system. My breasts, the highest point, measures 34.5 inches and use 34c cups, what dome size should I get? For those who like the dome rings, how are they beneficial to you? What do they do that makes it hard to avoid using them? Lastly, does the hand pump that comes with the kit have something that releases the vacumming? Thanks, any feedback would do. 