Astrild - I'm late coming to this but hopefully I can clear up some things
- Marks & Spencers bras run small in the cup so you really might need to go up to a 30E/F in them (especially with spillage). Their sizing is horrible (a well-known lingerie blogger talks about her experience there in this post and they got sizing WAY off for her:
http://fullerfigurefullerbust.com/ta...s-bra-fitting/)
- 28's and 30's are NOT for juniors. That's the whole reason we started the Bra Band Project:
http://www.bralessinbrasil.com/2012/...t-is-live.html I'm 30 years old and need a 28 band, sometimes even a 26 band depending on brand!!!!
- The adding four inches is an outdated method. The reason it was around because vintage bras do not have nearly as much stretch as modern bras so women had to go up 4". Now-a-days all bras have a ton of stretch and some women even need to go down a back size from their underbust measurements.
- It's hard to see the correct cup size in too big bands. So while your 36Bs might appear to fit in the cups now, once you get to the correct band size you might find a lot of fit issues in identical cup sizes.
- If you're looking for cheap bras check out Brastop and Figleaves (figleaves has a coupon code for 20% off), I also have a ton of other bra resources on my blog. If you're looking for a place with free international shipping Large Cup Lingerie has that.
Let me know if you have any other questions. Also, try on bras during days when you don't have PMS/you're not ovulating because that can often make your breasts 1-2 cup sizes larger.
Also, make sure to bend forward and scoup all your breast tissue into the cups because you can very well have lots of breast tissue migration (i.e. back/under arm fat) from wearing ill-fitting bras for years. Basically, it means that your bands were too loose, and your cups too small so the breast tissue is forced to the sides/back. Don't stress about it becuase a well-fitting bra can fix that!