thanks for your answer, I also have good experience with the measurement tables,it gave me the correct size till now, but most of the people on this forum refuse to believe for example that you need at least 6'' difference for a B cup, they call themselves a C even with only 5'' difference. I do get different results from online calculators, but when I calculate myself and compare it to the tables, no matter which system/country it is pretta much the same, just small differences.
I asked, because my goal (first big goal) is to reach 8'' bust-underbust difference and I was wandering if that will make me a C or D, according to the measurements it is supposed to be a D and you confirmed it
I started with only 2'' difference, now have 6'' difference and I am approaching a shy B.
I tried Rapibust, did nothing, nothing at all for me and I used it every night for 2 months
I asked, because my goal (first big goal) is to reach 8'' bust-underbust difference and I was wandering if that will make me a C or D, according to the measurements it is supposed to be a D and you confirmed it

I tried Rapibust, did nothing, nothing at all for me and I used it every night for 2 months