22-05-2012, 06:40
I was a 32B when I started NB and I started with the medium sized domes, used them for 2 months or so, then moved to the large domes. It could be that the domes are too large, the system has air seeping somewhere, etc. Also be sure to use PLENTY of lotion or oil on the breasts, without it, it's hard to get suction.